620239480 has 32 divisors (see below), whose sum is σ = 1594902240. Its totient is φ = 212653440.

The previous prime is 620239453. The next prime is 620239481. The reversal of 620239480 is 84932026.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620239481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1107291 + ... + 1107850.

It is an arithmetic number, because the mean of its divisors is an integer number (49840695).

Almost surely, 2^620239480 is an apocalyptic number.

It is an amenable number.

620239480 is an abundant number, since it is smaller than the sum of its proper divisors (974662760).

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

620239480 is a wasteful number, since it uses less digits than its factorization.

620239480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2215159 (or 2215155 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 620239480 is about 24904.6076058227. The cubic root of 620239480 is about 852.8116718574.

It can be divided in two parts, 620 and 239480, that added together give a square (240100 = 490²).

The spelling of 620239480 in words is "six hundred twenty million, two hundred thirty-nine thousand, four hundred eighty".