402340405215 has 128 divisors (see below), whose sum is σ = 760874010624. Its totient is φ = 177730560000.

The previous prime is 402340405211. The next prime is 402340405261. The reversal of 402340405215 is 512504043204.

It is not a de Polignac number, because 402340405215 - 2² = 402340405211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402340405211) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 211645765 + ... + 211647665.

It is an arithmetic number, because the mean of its divisors is an integer number (5944328208).

Almost surely, 2^402340405215 is an apocalyptic number.

402340405215 is a deficient number, since it is larger than the sum of its proper divisors (358533605409).

402340405215 is a wasteful number, since it uses less digits than its factorization.

402340405215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2401.

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 402340405215 its reverse (512504043204), we get a palindrome (914844448419).

The spelling of 402340405215 in words is "four hundred two billion, three hundred forty million, four hundred five thousand, two hundred fifteen".