402488901 has 24 divisors (see below), whose sum is σ = 596756160. Its totient is φ = 261265536.

The previous prime is 402488881. The next prime is 402488917. The reversal of 402488901 is 109884204.

It is not a de Polignac number, because 402488901 - 2⁷ = 402488773 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402488921) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 137485 + ... + 140381.

It is an arithmetic number, because the mean of its divisors is an integer number (24864840).

Almost surely, 2^402488901 is an apocalyptic number.

It is an amenable number.

402488901 is a deficient number, since it is larger than the sum of its proper divisors (194267259).

402488901 is a wasteful number, since it uses less digits than its factorization.

402488901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3305 (or 3302 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 402488901 is about 20062.1260338978. The cubic root of 402488901 is about 738.3313393079.

The spelling of 402488901 in words is "four hundred two million, four hundred eighty-eight thousand, nine hundred one".