621958452 has 24 divisors (see below), whose sum is σ = 1451720256. Its totient is φ = 207250368.

The previous prime is 621958427. The next prime is 621958459. The reversal of 621958452 is 254859126.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (621958459) 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, 39648 + ... + 53064.

It is an arithmetic number, because the mean of its divisors is an integer number (60488344).

Almost surely, 2^621958452 is an apocalyptic number.

It is an amenable number.

621958452 is an abundant number, since it is smaller than the sum of its proper divisors (829761804).

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

621958452 is a wasteful number, since it uses less digits than its factorization.

621958452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17287 (or 17285 counting only the distinct ones).

The product of its digits is 172800, while the sum is 42.

The square root of 621958452 is about 24939.0948512571. The cubic root of 621958452 is about 853.5987910421.

The spelling of 621958452 in words is "six hundred twenty-one million, nine hundred fifty-eight thousand, four hundred fifty-two".