2572336620 has 72 divisors (see below), whose sum is σ = 8917437984. Its totient is φ = 587962368.

The previous prime is 2572336553. The next prime is 2572336673. The reversal of 2572336620 is 266332752.

It is a happy number.

2572336620 is a `hidden beast` number, since 2 + 5 + 7 + 23 + 3 + 6 + 620 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1019509 + ... + 1022028.

Almost surely, 2^2572336620 is an apocalyptic number.

2572336620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2572336620 is an abundant number, since it is smaller than the sum of its proper divisors (6345101364).

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

2572336620 is a wasteful number, since it uses less digits than its factorization.

2572336620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2041559 (or 2041554 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 36.

The square root of 2572336620 is about 50718.2079730741. The cubic root of 2572336620 is about 1370.1746664900.

The spelling of 2572336620 in words is "two billion, five hundred seventy-two million, three hundred thirty-six thousand, six hundred twenty".