38413890 has 48 divisors (see below), whose sum is σ = 100234368. Its totient is φ = 10207008.

The previous prime is 38413883. The next prime is 38413891. The reversal of 38413890 is 9831483.

It is not an unprimeable number, because it can be changed into a prime (38413891) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32449 + ... + 33611.

It is an arithmetic number, because the mean of its divisors is an integer number (2088216).

Almost surely, 2^38413890 is an apocalyptic number.

38413890 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

38413890 is an abundant number, since it is smaller than the sum of its proper divisors (61820478).

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

38413890 is a wasteful number, since it uses less digits than its factorization.

38413890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1543 (or 1540 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 38413890 is about 6197.8939971574. The cubic root of 38413890 is about 337.4137392716.

The spelling of 38413890 in words is "thirty-eight million, four hundred thirteen thousand, eight hundred ninety".