75372444 has 120 divisors (see below), whose sum is σ = 227673600. Its totient is φ = 21298464.

The previous prime is 75372433. The next prime is 75372457. The reversal of 75372444 is 44427357.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 75372399 and 75372408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 378657 + ... + 378855.

It is an arithmetic number, because the mean of its divisors is an integer number (1897280).

Almost surely, 2^75372444 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 75372444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113836800).

75372444 is an abundant number, since it is smaller than the sum of its proper divisors (152301156).

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

75372444 is a wasteful number, since it uses less digits than its factorization.

75372444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389 (or 378 counting only the distinct ones).

The product of its digits is 94080, while the sum is 36.

The square root of 75372444 is about 8681.7304726650. The cubic root of 75372444 is about 422.4132501654.

The spelling of 75372444 in words is "seventy-five million, three hundred seventy-two thousand, four hundred forty-four".