402312046 has 16 divisors (see below), whose sum is σ = 608155200. Its totient is φ = 199600128.

The previous prime is 402312037. The next prime is 402312047. The reversal of 402312046 is 640213204.

It is a happy number.

It is a super-2 number, since 2×402312046² = 323709964713412232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402312047) 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, 148270 + ... + 150958.

It is an arithmetic number, because the mean of its divisors is an integer number (38009700).

Almost surely, 2^402312046 is an apocalyptic number.

402312046 is a deficient number, since it is larger than the sum of its proper divisors (205843154).

402312046 is a wasteful number, since it uses less digits than its factorization.

402312046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3243.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 402312046 is about 20057.7178661980. The cubic root of 402312046 is about 738.2231816926.

The spelling of 402312046 in words is "four hundred two million, three hundred twelve thousand, forty-six".