402444116 has 24 divisors (see below), whose sum is σ = 731462760. Its totient is φ = 193577472.

The previous prime is 402444103. The next prime is 402444131. The reversal of 402444116 is 611444204.

It can be written as a sum of positive squares in 4 ways, for example, as 32035600 + 370408516 = 5660^2 + 19246^2 .

It is a super-2 number, since 2×402444116² = 323922533006042912, which contains 22 as substring.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 2105 + ... + 28448.

It is an arithmetic number, because the mean of its divisors is an integer number (30477615).

Almost surely, 2^402444116 is an apocalyptic number.

It is an amenable number.

402444116 is a deficient number, since it is larger than the sum of its proper divisors (329018644).

402444116 is a wasteful number, since it uses less digits than its factorization.

402444116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30683 (or 30681 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

The square root of 402444116 is about 20061.0098449704. The cubic root of 402444116 is about 738.3039535461.

The spelling of 402444116 in words is "four hundred two million, four hundred forty-four thousand, one hundred sixteen".