72701420 has 48 divisors (see below), whose sum is σ = 167293728. Its totient is φ = 26319360.

The previous prime is 72701399. The next prime is 72701437. The reversal of 72701420 is 2410727.

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, 60344 + ... + 61536.

It is an arithmetic number, because the mean of its divisors is an integer number (3485286).

Almost surely, 2^72701420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72701420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83646864).

72701420 is an abundant number, since it is smaller than the sum of its proper divisors (94592308).

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

72701420 is a wasteful number, since it uses less digits than its factorization.

72701420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1490 (or 1488 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 23.

The square root of 72701420 is about 8526.5127690047. The cubic root of 72701420 is about 417.3633386840.

The spelling of 72701420 in words is "seventy-two million, seven hundred one thousand, four hundred twenty".