402116438 has 16 divisors (see below), whose sum is σ = 637822080. Its totient is φ = 189825600.

The previous prime is 402116431. The next prime is 402116467. The reversal of 402116438 is 834611204.

It is a self number, because there is not a number n which added to its sum of digits gives 402116438.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402116431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76553 + ... + 81636.

It is an arithmetic number, because the mean of its divisors is an integer number (39863880).

Almost surely, 2^402116438 is an apocalyptic number.

402116438 is a deficient number, since it is larger than the sum of its proper divisors (235705642).

402116438 is a wasteful number, since it uses less digits than its factorization.

402116438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158263.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 402116438 is about 20052.8411453340. The cubic root of 402116438 is about 738.1035185512.

The spelling of 402116438 in words is "four hundred two million, one hundred sixteen thousand, four hundred thirty-eight".