890242040 has 32 divisors (see below), whose sum is σ = 2045666880. Its totient is φ = 348519552.

The previous prime is 890242039. The next prime is 890242049. The reversal of 890242040 is 40242098.

It is a junction number, because it is equal to n+sod(n) for n = 890241994 and 890242012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (890242049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 234887 + ... + 238646.

It is an arithmetic number, because the mean of its divisors is an integer number (63927090).

Almost surely, 2^890242040 is an apocalyptic number.

It is an amenable number.

890242040 is an abundant number, since it is smaller than the sum of its proper divisors (1155424840).

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

890242040 is a wasteful number, since it uses less digits than its factorization.

890242040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473591 (or 473587 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 890242040 is about 29836.9241042035. The cubic root of 890242040 is about 961.9873615760.

The spelling of 890242040 in words is "eight hundred ninety million, two hundred forty-two thousand, forty".