72007620 has 48 divisors (see below), whose sum is σ = 201989760. Its totient is φ = 19166976.

The previous prime is 72007589. The next prime is 72007643. The reversal of 72007620 is 2670027.

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, 63216 + ... + 64344.

It is an arithmetic number, because the mean of its divisors is an integer number (4208120).

Almost surely, 2^72007620 is an apocalyptic number.

It is an amenable number.

72007620 is an abundant number, since it is smaller than the sum of its proper divisors (129982140).

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

72007620 is a wasteful number, since it uses less digits than its factorization.

72007620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2204 (or 2202 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 24.

The square root of 72007620 is about 8485.7303751651. The cubic root of 72007620 is about 416.0314402396.

Adding to 72007620 its reverse (2670027), we get a palindrome (74677647).

It can be divided in two parts, 72007 and 620, that added together give a palindrome (72627).

The spelling of 72007620 in words is "seventy-two million, seven thousand, six hundred twenty".