402042204215 has 16 divisors (see below), whose sum is σ = 489092632896. Its totient is φ = 317206368000.

The previous prime is 402042204181. The next prime is 402042204217. The reversal of 402042204215 is 512402240204.

It is not a de Polignac number, because 402042204215 - 2²⁶ = 401975095351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402042204217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7397390 + ... + 7451540.

It is an arithmetic number, because the mean of its divisors is an integer number (30568289556).

Almost surely, 2^402042204215 is an apocalyptic number.

402042204215 is a deficient number, since it is larger than the sum of its proper divisors (87050428681).

402042204215 is a wasteful number, since it uses less digits than its factorization.

402042204215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74570.

The product of its (nonzero) digits is 5120, while the sum is 26.

Adding to 402042204215 its reverse (512402240204), we get a palindrome (914444444419).

The spelling of 402042204215 in words is "four hundred two billion, forty-two million, two hundred four thousand, two hundred fifteen".