402312674 has 4 divisors (see below), whose sum is σ = 603469014. Its totient is φ = 201156336.

The previous prime is 402312653. The next prime is 402312697. The reversal of 402312674 is 476213204.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 236083225 + 166229449 = 15365^2 + 12893^2 .

It is a super-2 number, since 2×402312674² = 323710975322060552, which contains 22 as substring.

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 as a sum of consecutive naturals, namely, 100578167 + ... + 100578170.

Almost surely, 2^402312674 is an apocalyptic number.

402312674 is a deficient number, since it is larger than the sum of its proper divisors (201156340).

402312674 is a wasteful number, since it uses less digits than its factorization.

402312674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201156339.

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 402312674 is about 20057.7335210138. The cubic root of 402312674 is about 738.2235658090.

Adding to 402312674 its reverse (476213204), we get a palindrome (878525878).

The spelling of 402312674 in words is "four hundred two million, three hundred twelve thousand, six hundred seventy-four".