38249090 has 32 divisors (see below), whose sum is σ = 79064640. Its totient is φ = 13176000.

The previous prime is 38249077. The next prime is 38249119. The reversal of 38249090 is 9094283.

It is a self number, because there is not a number n which added to its sum of digits gives 38249090.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7061 + ... + 11240.

It is an arithmetic number, because the mean of its divisors is an integer number (2470770).

Almost surely, 2^38249090 is an apocalyptic number.

38249090 is an abundant number, since it is smaller than the sum of its proper divisors (40815550).

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

38249090 is a wasteful number, since it uses less digits than its factorization.

38249090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18338.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 38249090 is about 6184.5848688493. The cubic root of 38249090 is about 336.9305330433.

The spelling of 38249090 in words is "thirty-eight million, two hundred forty-nine thousand, ninety".