72615742 has 16 divisors (see below), whose sum is σ = 111046464. Its totient is φ = 35604000.

The previous prime is 72615737. The next prime is 72615757. The reversal of 72615742 is 24751627.

It is a junction number, because it is equal to n+sod(n) for n = 72615698 and 72615707.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51892 + ... + 53272.

It is an arithmetic number, because the mean of its divisors is an integer number (6940404).

Almost surely, 2^72615742 is an apocalyptic number.

72615742 is a deficient number, since it is larger than the sum of its proper divisors (38430722).

72615742 is a wasteful number, since it uses less digits than its factorization.

72615742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1875.

The product of its digits is 23520, while the sum is 34.

The square root of 72615742 is about 8521.4870767959. The cubic root of 72615742 is about 417.1993211976.

The spelling of 72615742 in words is "seventy-two million, six hundred fifteen thousand, seven hundred forty-two".