72357424 has 10 divisors (see below), whose sum is σ = 140192540. Its totient is φ = 36178704.

The previous prime is 72357421. The next prime is 72357427. The reversal of 72357424 is 42475327.

It is an interprime number because it is at equal distance from previous prime (72357421) and next prime (72357427).

It is a self number, because there is not a number n which added to its sum of digits gives 72357424.

It is not an unprimeable number, because it can be changed into a prime (72357421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2261154 + ... + 2261185.

It is an arithmetic number, because the mean of its divisors is an integer number (14019254).

Almost surely, 2^72357424 is an apocalyptic number.

It is an amenable number.

72357424 is a deficient number, since it is larger than the sum of its proper divisors (67835116).

72357424 is a wasteful number, since it uses less digits than its factorization.

72357424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4522347 (or 4522341 counting only the distinct ones).

The product of its digits is 47040, while the sum is 34.

The square root of 72357424 is about 8506.3167117149. The cubic root of 72357424 is about 416.7040285075.

The spelling of 72357424 in words is "seventy-two million, three hundred fifty-seven thousand, four hundred twenty-four".