39428755 has 8 divisors (see below), whose sum is σ = 47429424. Its totient is φ = 31466400.

The previous prime is 39428749. The next prime is 39428761. The reversal of 39428755 is 55782493.

It is an interprime number because it is at equal distance from previous prime (39428749) and next prime (39428761).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 39428755 - 2³ = 39428747 is a prime.

It is a Duffinian number.

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, 7261 + ... + 11470.

It is an arithmetic number, because the mean of its divisors is an integer number (5928678).

Almost surely, 2^39428755 is an apocalyptic number.

39428755 is a deficient number, since it is larger than the sum of its proper divisors (8000669).

39428755 is a wasteful number, since it uses less digits than its factorization.

39428755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19157.

The product of its digits is 302400, while the sum is 43.

The square root of 39428755 is about 6279.2320390315. The cubic root of 39428755 is about 340.3593518949.

The spelling of 39428755 in words is "thirty-nine million, four hundred twenty-eight thousand, seven hundred fifty-five".