72070404 has 24 divisors (see below), whose sum is σ = 192187968. Its totient is φ = 20591520.

The previous prime is 72070393. The next prime is 72070409. The reversal of 72070404 is 40407027.

It is not an unprimeable number, because it can be changed into a prime (72070409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 428907 + ... + 429074.

It is an arithmetic number, because the mean of its divisors is an integer number (8007832).

Almost surely, 2^72070404 is an apocalyptic number.

It is an amenable number.

72070404 is an abundant number, since it is smaller than the sum of its proper divisors (120117564).

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

72070404 is a wasteful number, since it uses less digits than its factorization.

72070404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857995 (or 857993 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 24.

The square root of 72070404 is about 8489.4289560606. The cubic root of 72070404 is about 416.1523187901.

The spelling of 72070404 in words is "seventy-two million, seventy thousand, four hundred four".