38749403 has 16 divisors (see below), whose sum is σ = 48721920. Its totient is φ = 30187080.

The previous prime is 38749393. The next prime is 38749429. The reversal of 38749403 is 30494783.

It is not a de Polignac number, because 38749403 - 2⁸ = 38749147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38749483) 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, 7238 + ... + 11396.

It is an arithmetic number, because the mean of its divisors is an integer number (3045120).

Almost surely, 2^38749403 is an apocalyptic number.

38749403 is a deficient number, since it is larger than the sum of its proper divisors (9972517).

38749403 is an equidigital number, since it uses as much as digits as its factorization.

38749403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4199 (or 4177 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 38749403 is about 6224.9018466157. The cubic root of 38749403 is about 338.3932347745.

The spelling of 38749403 in words is "thirty-eight million, seven hundred forty-nine thousand, four hundred three".