72652642 has 8 divisors (see below), whose sum is σ = 109979100. Its totient is φ = 35992944.

The previous prime is 72652631. The next prime is 72652663. The reversal of 72652642 is 24625627.

It can be written as a sum of positive squares in 2 ways, for example, as 72267001 + 385641 = 8501^2 + 621^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 72652598 and 72652607.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166417 + ... + 166852.

Almost surely, 2^72652642 is an apocalyptic number.

72652642 is a deficient number, since it is larger than the sum of its proper divisors (37326458).

72652642 is a wasteful number, since it uses less digits than its factorization.

72652642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333380.

The product of its digits is 40320, while the sum is 34.

The square root of 72652642 is about 8523.6519168723. The cubic root of 72652642 is about 417.2699764377.

The spelling of 72652642 in words is "seventy-two million, six hundred fifty-two thousand, six hundred forty-two".