396898020 has 72 divisors (see below), whose sum is σ = 1206072504. Its totient is φ = 105650688.

The previous prime is 396898013. The next prime is 396898027. The reversal of 396898020 is 20898693.

It is an interprime number because it is at equal distance from previous prime (396898013) and next prime (396898027).

It can be written as a sum of positive squares in 4 ways, for example, as 233722944 + 163175076 = 15288^2 + 12774^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (396898027) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 120232 + ... + 123488.

It is an arithmetic number, because the mean of its divisors is an integer number (16751007).

Almost surely, 2^396898020 is an apocalyptic number.

396898020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

396898020 is an abundant number, since it is smaller than the sum of its proper divisors (809174484).

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

396898020 is a wasteful number, since it uses less digits than its factorization.

396898020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3949 (or 3944 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 396898020 is about 19922.2995660642. The cubic root of 396898020 is about 734.8967229594.

The spelling of 396898020 in words is "three hundred ninety-six million, eight hundred ninety-eight thousand, twenty".