72446357 has 8 divisors (see below), whose sum is σ = 74326560. Its totient is φ = 70575120.

The previous prime is 72446351. The next prime is 72446377. The reversal of 72446357 is 75364427.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72446357 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72446357.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72446351) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16007 + ... + 20027.

It is an arithmetic number, because the mean of its divisors is an integer number (9290820).

Almost surely, 2^72446357 is an apocalyptic number.

It is an amenable number.

72446357 is a deficient number, since it is larger than the sum of its proper divisors (1880203).

72446357 is a wasteful number, since it uses less digits than its factorization.

72446357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4483.

The product of its digits is 141120, while the sum is 38.

The square root of 72446357 is about 8511.5425746453. The cubic root of 72446357 is about 416.8746793542.

The spelling of 72446357 in words is "seventy-two million, four hundred forty-six thousand, three hundred fifty-seven".