38993742 has 12 divisors (see below), whose sum is σ = 84486480. Its totient is φ = 12997908.

The previous prime is 38993741. The next prime is 38993761. The reversal of 38993742 is 24739983.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38993741) 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, 1083142 + ... + 1083177.

It is an arithmetic number, because the mean of its divisors is an integer number (7040540).

Almost surely, 2^38993742 is an apocalyptic number.

38993742 is an abundant number, since it is smaller than the sum of its proper divisors (45492738).

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

38993742 is a wasteful number, since it uses less digits than its factorization.

38993742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2166327 (or 2166324 counting only the distinct ones).

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

The square root of 38993742 is about 6244.4969373041. The cubic root of 38993742 is about 339.1030046976.

The spelling of 38993742 in words is "thirty-eight million, nine hundred ninety-three thousand, seven hundred forty-two".