402245082 has 32 divisors (see below), whose sum is σ = 912902400. Its totient is φ = 131228064.

The previous prime is 402245069. The next prime is 402245113. The reversal of 402245082 is 280542204.

It is a happy number.

It is a super-2 number, since 2×402245082² = 323602211986373448, which contains 22 as substring.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76707 + ... + 81782.

It is an arithmetic number, because the mean of its divisors is an integer number (28528200).

Almost surely, 2^402245082 is an apocalyptic number.

402245082 is an abundant number, since it is smaller than the sum of its proper divisors (510657318).

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

402245082 is a wasteful number, since it uses less digits than its factorization.

402245082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158547 (or 158541 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

The square root of 402245082 is about 20056.0485141017. The cubic root of 402245082 is about 738.1822208509.

Adding to 402245082 its reverse (280542204), we get a palindrome (682787286).

The spelling of 402245082 in words is "four hundred two million, two hundred forty-five thousand, eighty-two".