72035520 has 56 divisors (see below), whose sum is σ = 228715824. Its totient is φ = 19209216.

The previous prime is 72035501. The next prime is 72035521. The reversal of 72035520 is 2553027.

It is a super-2 number, since 2×72035520² = 10378232283340800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (72035521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36559 + ... + 38478.

Almost surely, 2^72035520 is an apocalyptic number.

It is an amenable number.

72035520 is an abundant number, since it is smaller than the sum of its proper divisors (156680304).

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

72035520 is a wasteful number, since it uses less digits than its factorization.

72035520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75057 (or 75047 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 24.

The square root of 72035520 is about 8487.3741522334. The cubic root of 72035520 is about 416.0851650093.

Adding to 72035520 its reverse (2553027), we get a palindrome (74588547).

The spelling of 72035520 in words is "seventy-two million, thirty-five thousand, five hundred twenty".