402254720 has 192 divisors, whose sum is σ = 1138613760. Its totient is φ = 135475200.

The previous prime is 402254711. The next prime is 402254761. The reversal of 402254720 is 27452204.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 402254720.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3167297 + ... + 3167423.

It is an arithmetic number, because the mean of its divisors is an integer number (5930280).

Almost surely, 2^402254720 is an apocalyptic number.

402254720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 402254720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (569306880).

402254720 is an abundant number, since it is smaller than the sum of its proper divisors (736359040).

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

402254720 is a wasteful number, since it uses less digits than its factorization.

402254720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261 (or 242 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 26.

The square root of 402254720 is about 20056.2887893050. The cubic root of 402254720 is about 738.1881165463.

The spelling of 402254720 in words is "four hundred two million, two hundred fifty-four thousand, seven hundred twenty".