402494055 has 8 divisors (see below), whose sum is σ = 643990512. Its totient is φ = 214663488.

The previous prime is 402494051. The next prime is 402494093. The reversal of 402494055 is 550494204.

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

It is not a de Polignac number, because 402494055 - 2² = 402494051 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402494051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13416454 + ... + 13416483.

It is an arithmetic number, because the mean of its divisors is an integer number (80498814).

Almost surely, 2^402494055 is an apocalyptic number.

402494055 is a deficient number, since it is larger than the sum of its proper divisors (241496457).

402494055 is a wasteful number, since it uses less digits than its factorization.

402494055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26832945.

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 402494055 is about 20062.2544844791. The cubic root of 402494055 is about 738.3344908180.

The spelling of 402494055 in words is "four hundred two million, four hundred ninety-four thousand, fifty-five".