620554142 has 24 divisors (see below), whose sum is σ = 1012584384. Its totient is φ = 285090624.

The previous prime is 620554139. The next prime is 620554163. The reversal of 620554142 is 241455026.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71258 + ... + 79490.

It is an arithmetic number, because the mean of its divisors is an integer number (42191016).

Almost surely, 2^620554142 is an apocalyptic number.

620554142 is a deficient number, since it is larger than the sum of its proper divisors (392030242).

620554142 is a wasteful number, since it uses less digits than its factorization.

620554142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8484 (or 8471 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 620554142 is about 24910.9241498584. The cubic root of 620554142 is about 852.9558645808.

The spelling of 620554142 in words is "six hundred twenty million, five hundred fifty-four thousand, one hundred forty-two".