402997055 has 8 divisors (see below), whose sum is σ = 499196544. Its totient is φ = 311997600.

The previous prime is 402997039. The next prime is 402997057. The reversal of 402997055 is 550799204.

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

It is not a de Polignac number, because 402997055 - 2⁴ = 402997039 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 (402997057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1299836 + ... + 1300145.

It is an arithmetic number, because the mean of its divisors is an integer number (62399568).

Almost surely, 2^402997055 is an apocalyptic number.

402997055 is a deficient number, since it is larger than the sum of its proper divisors (96199489).

402997055 is a wasteful number, since it uses less digits than its factorization.

402997055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2600017.

The product of its (nonzero) digits is 113400, while the sum is 41.

The square root of 402997055 is about 20074.7865493011. The cubic root of 402997055 is about 738.6419302655.

It can be divided in two parts, 4029 and 97055, that multiplied together give a triangular number (391034595 = T₂₇₉₆₅).

The spelling of 402997055 in words is "four hundred two million, nine hundred ninety-seven thousand, fifty-five".