39490501 has 4 divisors (see below), whose sum is σ = 39654604. Its totient is φ = 39326400.

The previous prime is 39490483. The next prime is 39490511. The reversal of 39490501 is 10509493.

39490501 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10509493 = 59 ⋅178127.

It can be written as a sum of positive squares in 2 ways, for example, as 12460900 + 27029601 = 3530^2 + 5199^2 .

It is a cyclic number.

It is not a de Polignac number, because 39490501 - 2¹³ = 39482309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39490511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81690 + ... + 82171.

It is an arithmetic number, because the mean of its divisors is an integer number (9913651).

Almost surely, 2^39490501 is an apocalyptic number.

It is an amenable number.

39490501 is a deficient number, since it is larger than the sum of its proper divisors (164103).

39490501 is a wasteful number, since it uses less digits than its factorization.

39490501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164102.

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 39490501 is about 6284.1467996857. The cubic root of 39490501 is about 340.5369284521.

Adding to 39490501 its reverse (10509493), we get a palindrome (49999994).

The spelling of 39490501 in words is "thirty-nine million, four hundred ninety thousand, five hundred one".