2210155040 has 96 divisors (see below), whose sum is σ = 5678319024. Its totient is φ = 809533440.

The previous prime is 2210155037. The next prime is 2210155043. The reversal of 2210155040 is 405510122.

It is an interprime number because it is at equal distance from previous prime (2210155037) and next prime (2210155043).

It can be written as a sum of positive squares in 8 ways, for example, as 1982386576 + 227768464 = 44524^2 + 15092^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (2210155043) 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, 89660 + ... + 111620.

Almost surely, 2^2210155040 is an apocalyptic number.

2210155040 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 2210155040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2839159512).

2210155040 is an abundant number, since it is smaller than the sum of its proper divisors (3468163984).

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

2210155040 is a wasteful number, since it uses less digits than its factorization.

2210155040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22030 (or 22022 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 2210155040 is about 47012.2860537541. The cubic root of 2210155040 is about 1302.5895208530.

Adding to 2210155040 its reverse (405510122), we get a palindrome (2615665162).

The spelling of 2210155040 in words is "two billion, two hundred ten million, one hundred fifty-five thousand, forty".