72404070 has 16 divisors (see below), whose sum is σ = 173769840. Its totient is φ = 19307744.

The previous prime is 72404063. The next prime is 72404083. The reversal of 72404070 is 7040427.

It is a self number, because there is not a number n which added to its sum of digits gives 72404070.

It is a congruent number.

It is an unprimeable number.

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, 1206705 + ... + 1206764.

It is an arithmetic number, because the mean of its divisors is an integer number (10860615).

Almost surely, 2^72404070 is an apocalyptic number.

72404070 is an abundant number, since it is smaller than the sum of its proper divisors (101365770).

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

72404070 is a wasteful number, since it uses less digits than its factorization.

72404070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2413479.

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

The square root of 72404070 is about 8509.0581147387. The cubic root of 72404070 is about 416.7935535332.

Adding to 72404070 its reverse (7040427), we get a palindrome (79444497).

The spelling of 72404070 in words is "seventy-two million, four hundred four thousand, seventy".