620556374 has 8 divisors (see below), whose sum is σ = 935658120. Its totient is φ = 308670336.

The previous prime is 620556373. The next prime is 620556379. The reversal of 620556374 is 473655026.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620556371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 803444 + ... + 804215.

It is an arithmetic number, because the mean of its divisors is an integer number (116957265).

Almost surely, 2^620556374 is an apocalyptic number.

620556374 is a deficient number, since it is larger than the sum of its proper divisors (315101746).

620556374 is a wasteful number, since it uses less digits than its factorization.

620556374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1607854.

The product of its (nonzero) digits is 151200, while the sum is 38.

The square root of 620556374 is about 24910.9689494407. The cubic root of 620556374 is about 852.9568872126.

The spelling of 620556374 in words is "six hundred twenty million, five hundred fifty-six thousand, three hundred seventy-four".