39428575 has 6 divisors (see below), whose sum is σ = 48891464. Its totient is φ = 31542840.

The previous prime is 39428573. The next prime is 39428581. The reversal of 39428575 is 57582493.

It is not a de Polignac number, because 39428575 - 2¹ = 39428573 is a prime.

It is a super-2 number, since 2×39428575² = 3109225053061250, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39428573) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 788547 + ... + 788596.

Almost surely, 2^39428575 is an apocalyptic number.

39428575 is a deficient number, since it is larger than the sum of its proper divisors (9462889).

39428575 is a wasteful number, since it uses less digits than its factorization.

39428575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1577153 (or 1577148 counting only the distinct ones).

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

The square root of 39428575 is about 6279.2177060522. The cubic root of 39428575 is about 340.3588339583.

The spelling of 39428575 in words is "thirty-nine million, four hundred twenty-eight thousand, five hundred seventy-five".