402234434012 has 12 divisors (see below), whose sum is σ = 703921919736. Its totient is φ = 201113885520.

The previous prime is 402234433981. The next prime is 402234434023. The reversal of 402234434012 is 210434432204.

It is a super-2 number, since 2×402234434012² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 550583 + ... + 1052430.

It is an arithmetic number, because the mean of its divisors is an integer number (58660159978).

Almost surely, 2^402234434012 is an apocalyptic number.

It is an amenable number.

402234434012 is a deficient number, since it is larger than the sum of its proper divisors (301687485724).

402234434012 is a wasteful number, since it uses less digits than its factorization.

402234434012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1665748 (or 1665746 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 402234434012 its reverse (210434432204), we get a palindrome (612668866216).

The spelling of 402234434012 in words is "four hundred two billion, two hundred thirty-four million, four hundred thirty-four thousand, twelve".