620622480 has 80 divisors (see below), whose sum is σ = 1986015744. Its totient is φ = 160158720.

The previous prime is 620622473. The next prime is 620622493. The reversal of 620622480 is 84226026.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34269 + ... + 49148.

Almost surely, 2^620622480 is an apocalyptic number.

620622480 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

620622480 is an abundant number, since it is smaller than the sum of its proper divisors (1365393264).

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

620622480 is a wasteful number, since it uses less digits than its factorization.

620622480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83464 (or 83458 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 620622480 is about 24912.2957593233. The cubic root of 620622480 is about 852.9871737792.

The spelling of 620622480 in words is "six hundred twenty million, six hundred twenty-two thousand, four hundred eighty".