620231004 has 36 divisors (see below), whose sum is σ = 1621871160. Its totient is φ = 199614240.

The previous prime is 620230999. The next prime is 620231039. The reversal of 620231004 is 400132026.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 296002 + ... + 298089.

Almost surely, 2^620231004 is an apocalyptic number.

It is an amenable number.

620231004 is an abundant number, since it is smaller than the sum of its proper divisors (1001640156).

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

620231004 is a wasteful number, since it uses less digits than its factorization.

620231004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 594130 (or 594125 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 620231004 is about 24904.4374359270. The cubic root of 620231004 is about 852.8077870866.

The spelling of 620231004 in words is "six hundred twenty million, two hundred thirty-one thousand, four".