402413555 has 4 divisors (see below), whose sum is σ = 482896272. Its totient is φ = 321930840.

The previous prime is 402413551. The next prime is 402413603. The reversal of 402413555 is 555314204.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 402413555 - 2² = 402413551 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (402413551) 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, 40241351 + ... + 40241360.

It is an arithmetic number, because the mean of its divisors is an integer number (120724068).

Almost surely, 2^402413555 is an apocalyptic number.

402413555 is a deficient number, since it is larger than the sum of its proper divisors (80482717).

402413555 is an equidigital number, since it uses as much as digits as its factorization.

402413555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80482716.

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 402413555 is about 20060.2481290736. The cubic root of 402413555 is about 738.2852645096.

Adding to 402413555 its reverse (555314204), we get a palindrome (957727759).

The spelling of 402413555 in words is "four hundred two million, four hundred thirteen thousand, five hundred fifty-five".