38890629 has 6 divisors (see below), whose sum is σ = 56175366. Its totient is φ = 25927080.

The previous prime is 38890609. The next prime is 38890633. The reversal of 38890629 is 92609883.

It can be written as a sum of positive squares in only one way, i.e., 24029604 + 14861025 = 4902^2 + 3855^2 .

It is not a de Polignac number, because 38890629 - 2¹¹ = 38888581 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38890609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2160582 + ... + 2160599.

It is an arithmetic number, because the mean of its divisors is an integer number (9362561).

Almost surely, 2^38890629 is an apocalyptic number.

It is an amenable number.

38890629 is a deficient number, since it is larger than the sum of its proper divisors (17284737).

38890629 is a wasteful number, since it uses less digits than its factorization.

38890629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4321187 (or 4321184 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 38890629 is about 6236.2351623395. The cubic root of 38890629 is about 338.8038387941.

The spelling of 38890629 in words is "thirty-eight million, eight hundred ninety thousand, six hundred twenty-nine".