38731774 has 4 divisors (see below), whose sum is σ = 58097664. Its totient is φ = 19365886.

The previous prime is 38731769. The next prime is 38731787. The reversal of 38731774 is 47713783.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 47713783 = 13 ⋅3670291.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9682942 + ... + 9682945.

It is an arithmetic number, because the mean of its divisors is an integer number (14524416).

Almost surely, 2^38731774 is an apocalyptic number.

38731774 is a deficient number, since it is larger than the sum of its proper divisors (19365890).

38731774 is a wasteful number, since it uses less digits than its factorization.

38731774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19365889.

The product of its digits is 98784, while the sum is 40.

The square root of 38731774 is about 6223.4856792637. The cubic root of 38731774 is about 338.3419097753.

Subtracting 38731774 from its reverse (47713783), we obtain a square (8982009 = 2997²).

The spelling of 38731774 in words is "thirty-eight million, seven hundred thirty-one thousand, seven hundred seventy-four".