621674030 has 8 divisors (see below), whose sum is σ = 1119013272. Its totient is φ = 248669608.

The previous prime is 621673967. The next prime is 621674051. The reversal of 621674030 is 30476126.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 621673984 and 621674002.

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 3 ways as a sum of consecutive naturals, for example, 31083692 + ... + 31083711.

It is an arithmetic number, because the mean of its divisors is an integer number (139876659).

Almost surely, 2^621674030 is an apocalyptic number.

621674030 is a deficient number, since it is larger than the sum of its proper divisors (497339242).

621674030 is a wasteful number, since it uses less digits than its factorization.

621674030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62167410.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 621674030 is about 24933.3918671327. The cubic root of 621674030 is about 853.4686541108.

The spelling of 621674030 in words is "six hundred twenty-one million, six hundred seventy-four thousand, thirty".