39428648 has 32 divisors (see below), whose sum is σ = 88939200. Its totient is φ = 16008192.

The previous prime is 39428639. The next prime is 39428659. The reversal of 39428648 is 84682493.

It is a junction number, because it is equal to n+sod(n) for n = 39428599 and 39428608.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17465 + ... + 19592.

It is an arithmetic number, because the mean of its divisors is an integer number (2779350).

Almost surely, 2^39428648 is an apocalyptic number.

39428648 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

39428648 is an abundant number, since it is smaller than the sum of its proper divisors (49510552).

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

39428648 is a wasteful number, since it uses less digits than its factorization.

39428648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37089 (or 37085 counting only the distinct ones).

The product of its digits is 331776, while the sum is 44.

The square root of 39428648 is about 6279.2235188756. The cubic root of 39428648 is about 340.3590440106.

The spelling of 39428648 in words is "thirty-nine million, four hundred twenty-eight thousand, six hundred forty-eight".