402412555 has 32 divisors (see below), whose sum is σ = 518581440. Its totient is φ = 299174400.

The previous prime is 402412553. The next prime is 402412561. The reversal of 402412555 is 555214204.

It is not a de Polignac number, because 402412555 - 2¹ = 402412553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (402412553) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 573705 + ... + 574405.

It is an arithmetic number, because the mean of its divisors is an integer number (16205670).

Almost surely, 2^402412555 is an apocalyptic number.

402412555 is a deficient number, since it is larger than the sum of its proper divisors (116168885).

402412555 is a wasteful number, since it uses less digits than its factorization.

402412555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 879.

The product of its (nonzero) digits is 8000, while the sum is 28.

The square root of 402412555 is about 20060.2232041421. The cubic root of 402412555 is about 738.2846529614.

Adding to 402412555 its reverse (555214204), we get a palindrome (957626759).

The spelling of 402412555 in words is "four hundred two million, four hundred twelve thousand, five hundred fifty-five".