72450670 has 16 divisors (see below), whose sum is σ = 131168160. Its totient is φ = 28812064.

The previous prime is 72450607. The next prime is 72450683. The reversal of 72450670 is 7605427.

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, 19210 + ... + 22669.

It is an arithmetic number, because the mean of its divisors is an integer number (8198010).

Almost surely, 2^72450670 is an apocalyptic number.

72450670 is a deficient number, since it is larger than the sum of its proper divisors (58717490).

72450670 is a wasteful number, since it uses less digits than its factorization.

72450670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42059.

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 72450670 is about 8511.7959327042. The cubic root of 72450670 is about 416.8829518880.

The spelling of 72450670 in words is "seventy-two million, four hundred fifty thousand, six hundred seventy".