890551040 has 36 divisors (see below), whose sum is σ = 2133151104. Its totient is φ = 356219904.

The previous prime is 890551021. The next prime is 890551117. The reversal of 890551040 is 40155098.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 890550988 and 890551006.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 346592 + ... + 349151.

Almost surely, 2^890551040 is an apocalyptic number.

890551040 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

890551040 is an abundant number, since it is smaller than the sum of its proper divisors (1242600064).

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

890551040 is an equidigital number, since it uses as much as digits as its factorization.

890551040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695764 (or 695750 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 32.

The square root of 890551040 is about 29842.1018026546. The cubic root of 890551040 is about 962.0986495539.

The spelling of 890551040 in words is "eight hundred ninety million, five hundred fifty-one thousand, forty".