72499045 has 8 divisors (see below), whose sum is σ = 87183360. Its totient is φ = 57876240.

The previous prime is 72499019. The next prime is 72499073. The reversal of 72499045 is 54099427.

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

It is not a de Polignac number, because 72499045 - 2⁹ = 72498533 is a prime.

It is a super-2 number, since 2×72499045² = 10512223051824050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 72498989 and 72499007.

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, 12741 + ... + 17530.

It is an arithmetic number, because the mean of its divisors is an integer number (10897920).

Almost surely, 2^72499045 is an apocalyptic number.

It is an amenable number.

72499045 is a deficient number, since it is larger than the sum of its proper divisors (14684315).

72499045 is a wasteful number, since it uses less digits than its factorization.

72499045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30755.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 72499045 is about 8514.6371032476. The cubic root of 72499045 is about 416.9757148952.

The spelling of 72499045 in words is "seventy-two million, four hundred ninety-nine thousand, forty-five".