402117612 has 48 divisors (see below), whose sum is σ = 1027038432. Its totient is φ = 121697280.

The previous prime is 402117601. The next prime is 402117613. The reversal of 402117612 is 216711204.

It is not an unprimeable number, because it can be changed into a prime (402117613) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11613 + ... + 30644.

It is an arithmetic number, because the mean of its divisors is an integer number (21396634).

Almost surely, 2^402117612 is an apocalyptic number.

It is an amenable number.

402117612 is an abundant number, since it is smaller than the sum of its proper divisors (624920820).

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

402117612 is a wasteful number, since it uses less digits than its factorization.

402117612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42338 (or 42336 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 402117612 is about 20052.8704179726. The cubic root of 402117612 is about 738.1042368612.

Adding to 402117612 its reverse (216711204), we get a palindrome (618828816).

The spelling of 402117612 in words is "four hundred two million, one hundred seventeen thousand, six hundred twelve".