402112615 has 8 divisors (see below), whose sum is σ = 482657040. Its totient is φ = 321608832.

The previous prime is 402112609. The next prime is 402112631. The reversal of 402112615 is 516211204.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 402112615 - 2²¹ = 400015463 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19471 + ... + 34399.

It is an arithmetic number, because the mean of its divisors is an integer number (60332130).

Almost surely, 2^402112615 is an apocalyptic number.

402112615 is a deficient number, since it is larger than the sum of its proper divisors (80544425).

402112615 is a wasteful number, since it uses less digits than its factorization.

402112615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20321.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 402112615 is about 20052.7458219567. The cubic root of 402112615 is about 738.1011794454.

Adding to 402112615 its reverse (516211204), we get a palindrome (918323819).

The spelling of 402112615 in words is "four hundred two million, one hundred twelve thousand, six hundred fifteen".