621253234 has 8 divisors (see below), whose sum is σ = 1065005568. Its totient is φ = 266251380.

The previous prime is 621253231. The next prime is 621253249. The reversal of 621253234 is 432352126.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (621253231) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 22187602 + ... + 22187629.

It is an arithmetic number, because the mean of its divisors is an integer number (133125696).

Almost surely, 2^621253234 is an apocalyptic number.

621253234 is a deficient number, since it is larger than the sum of its proper divisors (443752334).

621253234 is a wasteful number, since it uses less digits than its factorization.

621253234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44375240.

The product of its digits is 8640, while the sum is 28.

The square root of 621253234 is about 24924.9520360622. The cubic root of 621253234 is about 853.2760466032.

The spelling of 621253234 in words is "six hundred twenty-one million, two hundred fifty-three thousand, two hundred thirty-four".