402426464624 has 20 divisors (see below), whose sum is σ = 792916552920. Its totient is φ = 197802838080.

The previous prime is 402426464623. The next prime is 402426464641. The reversal of 402426464624 is 426464624204.

It is a super-2 number, since 2×402426464624² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402426464623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 213148667 + ... + 213150554.

It is an arithmetic number, because the mean of its divisors is an integer number (39645827646).

Almost surely, 2^402426464624 is an apocalyptic number.

It is an amenable number.

402426464624 is a deficient number, since it is larger than the sum of its proper divisors (390490088296).

402426464624 is a wasteful number, since it uses less digits than its factorization.

402426464624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426299288 (or 426299282 counting only the distinct ones).

The product of its (nonzero) digits is 1769472, while the sum is 44.

The spelling of 402426464624 in words is "four hundred two billion, four hundred twenty-six million, four hundred sixty-four thousand, six hundred twenty-four".