2073405840 has 160 divisors (see below), whose sum is σ = 7316960256. Its totient is φ = 480775680.

The previous prime is 2073405811. The next prime is 2073405847. The reversal of 2073405840 is 485043702.

It is a super-2 number, since 2×2073405840² = 8598023554692211200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (2073405847) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43647 + ... + 77793.

Almost surely, 2^2073405840 is an apocalyptic number.

2073405840 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 2073405840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3658480128).

2073405840 is an abundant number, since it is smaller than the sum of its proper divisors (5243554416).

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

2073405840 is a wasteful number, since it uses less digits than its factorization.

2073405840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34197 (or 34191 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 33.

The square root of 2073405840 is about 45534.6663543283. Note that the first 3 decimals coincide. The cubic root of 2073405840 is about 1275.1504812777.

The spelling of 2073405840 in words is "two billion, seventy-three million, four hundred five thousand, eight hundred forty".