39197742 has 16 divisors (see below), whose sum is σ = 78592080. Its totient is φ = 13033152.

The previous prime is 39197729. The next prime is 39197759. The reversal of 39197742 is 24779193.

It is a junction number, because it is equal to n+sod(n) for n = 39197694 and 39197703.

It is a congruent 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, 5533 + ... + 10440.

It is an arithmetic number, because the mean of its divisors is an integer number (4912005).

Almost surely, 2^39197742 is an apocalyptic number.

39197742 is an abundant number, since it is smaller than the sum of its proper divisors (39394338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

39197742 is a wasteful number, since it uses less digits than its factorization.

39197742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16387.

The product of its digits is 95256, while the sum is 42.

The square root of 39197742 is about 6260.8100114921. The cubic root of 39197742 is about 339.6933278549.

The spelling of 39197742 in words is "thirty-nine million, one hundred ninety-seven thousand, seven hundred forty-two".