38742790 has 8 divisors (see below), whose sum is σ = 69737040. Its totient is φ = 15497112.

The previous prime is 38742773. The next prime is 38742791. The reversal of 38742790 is 9724783.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38742791) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1937130 + ... + 1937149.

It is an arithmetic number, because the mean of its divisors is an integer number (8717130).

Almost surely, 2^38742790 is an apocalyptic number.

38742790 is a deficient number, since it is larger than the sum of its proper divisors (30994250).

38742790 is a wasteful number, since it uses less digits than its factorization.

38742790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3874286.

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 38742790 is about 6224.3706509172. The cubic root of 38742790 is about 338.3739835379.

The spelling of 38742790 in words is "thirty-eight million, seven hundred forty-two thousand, seven hundred ninety".