2097431040 has 160 divisors (see below), whose sum is σ = 6792065280. Its totient is φ = 552075264.

The previous prime is 2097431027. The next prime is 2097431041. The reversal of 2097431040 is 401347902.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (160).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 2097430989 and 2097431007.

It is not an unprimeable number, because it can be changed into a prime (2097431041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 604992 + ... + 608448.

It is an arithmetic number, because the mean of its divisors is an integer number (42450408).

Almost surely, 2^2097431040 is an apocalyptic number.

2097431040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2097431040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3396032640).

2097431040 is an abundant number, since it is smaller than the sum of its proper divisors (4694634240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2097431040 is an equidigital number, since it uses as much as digits as its factorization.

2097431040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3562 (or 3546 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 2097431040 is about 45797.7187204778. The cubic root of 2097431040 is about 1280.0567683156.

Adding to 2097431040 its reverse (401347902), we get a palindrome (2498778942).

The spelling of 2097431040 in words is "two billion, ninety-seven million, four hundred thirty-one thousand, forty".