39448728 has 64 divisors (see below), whose sum is σ = 119548800. Its totient is φ = 11953440.

The previous prime is 39448723. The next prime is 39448733. The reversal of 39448728 is 82784493.

It is an interprime number because it is at equal distance from previous prime (39448723) and next prime (39448733).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39448723) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5926 + ... + 10677.

It is an arithmetic number, because the mean of its divisors is an integer number (1867950).

Almost surely, 2^39448728 is an apocalyptic number.

It is an amenable number.

39448728 is an abundant number, since it is smaller than the sum of its proper divisors (80100072).

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

39448728 is a wasteful number, since it uses less digits than its factorization.

39448728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16629 (or 16619 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 39448728 is about 6280.8222391658. The cubic root of 39448728 is about 340.4168129179.

The spelling of 39448728 in words is "thirty-nine million, four hundred forty-eight thousand, seven hundred twenty-eight".