39742461 has 16 divisors (see below), whose sum is σ = 64230720. Its totient is φ = 24086160.

The previous prime is 39742453. The next prime is 39742501. The reversal of 39742461 is 16424793.

It is not a de Polignac number, because 39742461 - 2³ = 39742453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39743461) 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, 66610 + ... + 67203.

It is an arithmetic number, because the mean of its divisors is an integer number (4014420).

Almost surely, 2^39742461 is an apocalyptic number.

It is an amenable number.

39742461 is a deficient number, since it is larger than the sum of its proper divisors (24488259).

39742461 is a wasteful number, since it uses less digits than its factorization.

39742461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133833 (or 133827 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 39742461 is about 6304.1621965175. The cubic root of 39742461 is about 341.2596326227.

The spelling of 39742461 in words is "thirty-nine million, seven hundred forty-two thousand, four hundred sixty-one".