621245682 has 24 divisors (see below), whose sum is σ = 1377337104. Its totient is φ = 202265784.

The previous prime is 621245659. The next prime is 621245687. The reversal of 621245682 is 286542126.

It is a happy number.

621245682 is a `hidden beast` number, since 621 + 24 + 5 + 6 + 8 + 2 = 666.

621245682 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (621245687) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 400548 + ... + 402095.

It is an arithmetic number, because the mean of its divisors is an integer number (57389046).

Almost surely, 2^621245682 is an apocalyptic number.

621245682 is an abundant number, since it is smaller than the sum of its proper divisors (756091422).

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

621245682 is a wasteful number, since it uses less digits than its factorization.

621245682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 802694 (or 802691 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 621245682 is about 24924.8005408268. The cubic root of 621245682 is about 853.2725890937.

The spelling of 621245682 in words is "six hundred twenty-one million, two hundred forty-five thousand, six hundred eighty-two".