72562420 has 48 divisors (see below), whose sum is σ = 174706560. Its totient is φ = 24799104.

The previous prime is 72562411. The next prime is 72562421. The reversal of 72562420 is 2426527.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72562421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58042 + ... + 59278.

It is an arithmetic number, because the mean of its divisors is an integer number (3639720).

Almost surely, 2^72562420 is an apocalyptic number.

72562420 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

72562420 is an abundant number, since it is smaller than the sum of its proper divisors (102144140).

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

72562420 is a wasteful number, since it uses less digits than its factorization.

72562420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1672 (or 1670 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 72562420 is about 8518.3578229609. The cubic root of 72562420 is about 417.0971792061.

Adding to 72562420 its reverse (2426527), we get a palindrome (74988947).

The spelling of 72562420 in words is "seventy-two million, five hundred sixty-two thousand, four hundred twenty".