402750420 has 48 divisors (see below), whose sum is σ = 1128660288. Its totient is φ = 107308800.

The previous prime is 402750407. The next prime is 402750433. The reversal of 402750420 is 24057204.

It is an interprime number because it is at equal distance from previous prime (402750407) and next prime (402750433).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97395 + ... + 101445.

It is an arithmetic number, because the mean of its divisors is an integer number (23513756).

Almost surely, 2^402750420 is an apocalyptic number.

It is an amenable number.

402750420 is an abundant number, since it is smaller than the sum of its proper divisors (725909868).

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

402750420 is a wasteful number, since it uses less digits than its factorization.

402750420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5720 (or 5718 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 24.

The square root of 402750420 is about 20068.6427044780. The cubic root of 402750420 is about 738.4912160716.

The spelling of 402750420 in words is "four hundred two million, seven hundred fifty thousand, four hundred twenty".