989020400 has 30 divisors (see below), whose sum is σ = 2376122472. Its totient is φ = 395608000.

The previous prime is 989020393. The next prime is 989020423. The reversal of 989020400 is 4020989.

989020400 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×989020400² = 1956322703232320000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1235876 + ... + 1236675.

Almost surely, 2^989020400 is an apocalyptic number.

It is an amenable number.

989020400 is an abundant number, since it is smaller than the sum of its proper divisors (1387102072).

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

989020400 is a wasteful number, since it uses less digits than its factorization.

989020400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2472569 (or 2472558 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 989020400 is about 31448.6947264906. The cubic root of 989020400 is about 996.3266564022.

The spelling of 989020400 in words is "nine hundred eighty-nine million, twenty thousand, four hundred".