39490507 has 16 divisors (see below), whose sum is σ = 49083840. Its totient is φ = 30993408.

The previous prime is 39490483. The next prime is 39490511. The reversal of 39490507 is 70509493.

It is a cyclic number.

It is not a de Polignac number, because 39490507 - 2²³ = 31101899 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39490567) 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, 82 + ... + 8887.

It is an arithmetic number, because the mean of its divisors is an integer number (3067740).

Almost surely, 2^39490507 is an apocalyptic number.

39490507 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

39490507 is a deficient number, since it is larger than the sum of its proper divisors (9593333).

39490507 is a wasteful number, since it uses less digits than its factorization.

39490507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9030.

The product of its (nonzero) digits is 34020, while the sum is 37.

The square root of 39490507 is about 6284.1472770775. The cubic root of 39490507 is about 340.5369456987.

The spelling of 39490507 in words is "thirty-nine million, four hundred ninety thousand, five hundred seven".