73972444 has 24 divisors (see below), whose sum is σ = 159326048. Its totient is φ = 29263680.

The previous prime is 73972441. The next prime is 73972447. The reversal of 73972444 is 44427937.

It is an interprime number because it is at equal distance from previous prime (73972441) and next prime (73972447).

It is a junction number, because it is equal to n+sod(n) for n = 73972397 and 73972406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73972441) 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, 101247 + ... + 101974.

Almost surely, 2^73972444 is an apocalyptic number.

It is an amenable number.

73972444 is an abundant number, since it is smaller than the sum of its proper divisors (85353604).

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

73972444 is a wasteful number, since it uses less digits than its factorization.

73972444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203245 (or 203243 counting only the distinct ones).

The product of its digits is 169344, while the sum is 40.

The square root of 73972444 is about 8600.7234579424. The cubic root of 73972444 is about 419.7815265870.

The spelling of 73972444 in words is "seventy-three million, nine hundred seventy-two thousand, four hundred forty-four".