38992743 has 6 divisors (see below), whose sum is σ = 56322864. Its totient is φ = 25995156.

The previous prime is 38992729. The next prime is 38992753. The reversal of 38992743 is 34729983.

It is a happy number.

It is not a de Polignac number, because 38992743 - 2⁹ = 38992231 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38992753) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2166255 + ... + 2166272.

It is an arithmetic number, because the mean of its divisors is an integer number (9387144).

Almost surely, 2^38992743 is an apocalyptic number.

38992743 is a deficient number, since it is larger than the sum of its proper divisors (17330121).

38992743 is a wasteful number, since it uses less digits than its factorization.

38992743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4332533 (or 4332530 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The square root of 38992743 is about 6244.4169463610. The cubic root of 38992743 is about 339.1001087903.

The spelling of 38992743 in words is "thirty-eight million, nine hundred ninety-two thousand, seven hundred forty-three".