72740630 has 8 divisors (see below), whose sum is σ = 130933152. Its totient is φ = 29096248.

The previous prime is 72740621. The next prime is 72740639. The reversal of 72740630 is 3604727.

It is an interprime number because it is at equal distance from previous prime (72740621) and next prime (72740639).

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 72740593 and 72740602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72740639) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3637022 + ... + 3637041.

It is an arithmetic number, because the mean of its divisors is an integer number (16366644).

Almost surely, 2^72740630 is an apocalyptic number.

72740630 is a deficient number, since it is larger than the sum of its proper divisors (58192522).

72740630 is a wasteful number, since it uses less digits than its factorization.

72740630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7274070.

The product of its (nonzero) digits is 7056, while the sum is 29.

The square root of 72740630 is about 8528.8117578007. The cubic root of 72740630 is about 417.4383572801.

The spelling of 72740630 in words is "seventy-two million, seven hundred forty thousand, six hundred thirty".