402800364 has 30 divisors (see below), whose sum is σ = 1053000564. Its totient is φ = 134266680.

The previous prime is 402800353. The next prime is 402800369. The reversal of 402800364 is 463008204.

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 (402800369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 621282 + ... + 621929.

Almost surely, 2^402800364 is an apocalyptic number.

It is an amenable number.

402800364 is an abundant number, since it is smaller than the sum of its proper divisors (650200200).

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

402800364 is a wasteful number, since it uses less digits than its factorization.

402800364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1243227 (or 1243216 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 402800364 is about 20069.8869951976. The cubic root of 402800364 is about 738.5217409152.

Adding to 402800364 its reverse (463008204), we get a palindrome (865808568).

The spelling of 402800364 in words is "four hundred two million, eight hundred thousand, three hundred sixty-four".