620109504 has 252 divisors, whose sum is σ = 2095951104. Its totient is φ = 174763008.

The previous prime is 620109499. The next prime is 620109533. The reversal of 620109504 is 405901026.

It is a tau number, because it is divible by the number of its divisors (252).

It is a super-2 number, since 2×620109504² = 769071593902252032, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3584362 + ... + 3584534.

Almost surely, 2^620109504 is an apocalyptic number.

620109504 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 620109504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1047975552).

620109504 is an abundant number, since it is smaller than the sum of its proper divisors (1475841600).

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

620109504 is a wasteful number, since it uses less digits than its factorization.

620109504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332 (or 312 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 620109504 is about 24901.9979921291. The cubic root of 620109504 is about 852.7520965927.

The spelling of 620109504 in words is "six hundred twenty million, one hundred nine thousand, five hundred four".