38339490 has 64 divisors (see below), whose sum is σ = 106536960. Its totient is φ = 8648640.

The previous prime is 38339489. The next prime is 38339501. The reversal of 38339490 is 9493383.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15435 + ... + 17745.

It is an arithmetic number, because the mean of its divisors is an integer number (1664640).

Almost surely, 2^38339490 is an apocalyptic number.

38339490 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 38339490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53268480).

38339490 is an abundant number, since it is smaller than the sum of its proper divisors (68197470).

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

38339490 is a wasteful number, since it uses less digits than its factorization.

38339490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2407.

The product of its (nonzero) digits is 69984, while the sum is 39.

The square root of 38339490 is about 6191.8890493936. The cubic root of 38339490 is about 337.1957642411.

The spelling of 38339490 in words is "thirty-eight million, three hundred thirty-nine thousand, four hundred ninety".