38790039 has 16 divisors (see below), whose sum is σ = 57646080. Its totient is φ = 23057280.

The previous prime is 38790019. The next prime is 38790047. The reversal of 38790039 is 93009783.

It is a happy number.

It is not a de Polignac number, because 38790039 - 2⁵ = 38790007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 38789979 and 38790006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38790019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19047 + ... + 20984.

It is an arithmetic number, because the mean of its divisors is an integer number (3602880).

Almost surely, 2^38790039 is an apocalyptic number.

38790039 is a deficient number, since it is larger than the sum of its proper divisors (18856041).

38790039 is a wasteful number, since it uses less digits than its factorization.

38790039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40070.

The product of its (nonzero) digits is 40824, while the sum is 39.

The square root of 38790039 is about 6228.1649785471. The cubic root of 38790039 is about 338.5114829918.

The spelling of 38790039 in words is "thirty-eight million, seven hundred ninety thousand, thirty-nine".