402117674 has 16 divisors (see below), whose sum is σ = 689810688. Its totient is φ = 172219632.

The previous prime is 402117649. The next prime is 402117679. The reversal of 402117674 is 476711204.

It is a self number, because there is not a number n which added to its sum of digits gives 402117674.

It is not an unprimeable number, because it can be changed into a prime (402117679) 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, 13679 + ... + 31485.

It is an arithmetic number, because the mean of its divisors is an integer number (43113168).

Almost surely, 2^402117674 is an apocalyptic number.

402117674 is a deficient number, since it is larger than the sum of its proper divisors (287693014).

402117674 is a wasteful number, since it uses less digits than its factorization.

402117674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19429.

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 402117674 is about 20052.8719638859. The cubic root of 402117674 is about 738.1042747957.

Adding to 402117674 its reverse (476711204), we get a palindrome (878828878).

The spelling of 402117674 in words is "four hundred two million, one hundred seventeen thousand, six hundred seventy-four".