980400402 has 32 divisors (see below), whose sum is σ = 2183448960. Its totient is φ = 326082960.

The previous prime is 980400397. The next prime is 980400409. The reversal of 980400402 is 204004089.

It is a super-2 number, since 2×980400402² = 1922369896483523208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (980400409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5203 + ... + 44585.

It is an arithmetic number, because the mean of its divisors is an integer number (68232780).

Almost surely, 2^980400402 is an apocalyptic number.

980400402 is an abundant number, since it is smaller than the sum of its proper divisors (1203048558).

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

980400402 is a wasteful number, since it uses less digits than its factorization.

980400402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39855 (or 39849 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 980400402 is about 31311.3462182641. The cubic root of 980400402 is about 993.4236470542.

The spelling of 980400402 in words is "nine hundred eighty million, four hundred thousand, four hundred two".