72370422 has 20 divisors (see below), whose sum is σ = 162163716. Its totient is φ = 24123420.

The previous prime is 72370421. The next prime is 72370423. The reversal of 72370422 is 22407327.

72370422 is a `hidden beast` number, since 7 + 237 + 0 + 422 = 666.

It is an interprime number because it is at equal distance from previous prime (72370421) and next prime (72370423).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72370421) by changing a digit.

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 9 ways as a sum of consecutive naturals, for example, 223204 + ... + 223527.

Almost surely, 2^72370422 is an apocalyptic number.

72370422 is an abundant number, since it is smaller than the sum of its proper divisors (89793294).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72370422 is a wasteful number, since it uses less digits than its factorization.

72370422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446745 (or 446736 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 27.

The square root of 72370422 is about 8507.0806978657. The cubic root of 72370422 is about 416.7289786986.

Adding to 72370422 its reverse (22407327), we get a palindrome (94777749).

The spelling of 72370422 in words is "seventy-two million, three hundred seventy thousand, four hundred twenty-two".