752472138 has 48 divisors (see below), whose sum is σ = 1657490688. Its totient is φ = 227568000.

The previous prime is 752472121. The next prime is 752472151. The reversal of 752472138 is 831274257.

It is a junction number, because it is equal to n+sod(n) for n = 752472096 and 752472105.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 625938 + ... + 627138.

It is an arithmetic number, because the mean of its divisors is an integer number (34531056).

Almost surely, 2^752472138 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 752472138, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (828745344).

752472138 is an abundant number, since it is smaller than the sum of its proper divisors (905018550).

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

752472138 is a wasteful number, since it uses less digits than its factorization.

752472138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2091 (or 2080 counting only the distinct ones).

The product of its digits is 94080, while the sum is 39.

The square root of 752472138 is about 27431.2256014929. The cubic root of 752472138 is about 909.5574622406.

The spelling of 752472138 in words is "seven hundred fifty-two million, four hundred seventy-two thousand, one hundred thirty-eight".