402553140 has 48 divisors (see below), whose sum is σ = 1229618880. Its totient is φ = 97588480.

The previous prime is 402553139. The next prime is 402553223. The reversal of 402553140 is 41355204.

It is a self number, because there is not a number n which added to its sum of digits gives 402553140.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 304305 + ... + 305624.

It is an arithmetic number, because the mean of its divisors is an integer number (25617060).

Almost surely, 2^402553140 is an apocalyptic number.

It is an amenable number.

402553140 is an abundant number, since it is smaller than the sum of its proper divisors (827065740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

402553140 is a wasteful number, since it uses less digits than its factorization.

402553140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 609952 (or 609950 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 402553140 is about 20063.7269718265. The cubic root of 402553140 is about 738.3706175287.

The spelling of 402553140 in words is "four hundred two million, five hundred fifty-three thousand, one hundred forty".