3620747520 has 288 divisors, whose sum is σ = 13838697600. Its totient is φ = 891150336.

The previous prime is 3620747519. The next prime is 3620747549. The reversal of 3620747520 is 257470263.

It is a happy number.

3620747520 is a `hidden beast` number, since 3 + 62 + 0 + 74 + 7 + 520 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 445251 + ... + 453309.

Almost surely, 2^3620747520 is an apocalyptic number.

3620747520 is a gapful number since it is divisible by the number (30) 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 3620747520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6919348800).

3620747520 is an abundant number, since it is smaller than the sum of its proper divisors (10217950080).

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

3620747520 is a wasteful number, since it uses less digits than its factorization.

3620747520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8102 (or 8082 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 36.

The square root of 3620747520 is about 60172.6476066992. The cubic root of 3620747520 is about 1535.5574897158.

The spelling of 3620747520 in words is "three billion, six hundred twenty million, seven hundred forty-seven thousand, five hundred twenty".