38740890 has 32 divisors (see below), whose sum is σ = 93473856. Its totient is φ = 10275840.

The previous prime is 38740883. The next prime is 38740907. The reversal of 38740890 is 9804783.

38740890 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2445 + ... + 9135.

It is an arithmetic number, because the mean of its divisors is an integer number (2921058).

Almost surely, 2^38740890 is an apocalyptic number.

38740890 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

38740890 is an abundant number, since it is smaller than the sum of its proper divisors (54732966).

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

38740890 is a wasteful number, since it uses less digits than its factorization.

38740890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6894.

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 38740890 is about 6224.2180231737. The cubic root of 38740890 is about 338.3684520048.

The spelling of 38740890 in words is "thirty-eight million, seven hundred forty thousand, eight hundred ninety".