38243490 has 32 divisors (see below), whose sum is σ = 92304576. Its totient is φ = 10140480.

The previous prime is 38243483. The next prime is 38243497. The reversal of 38243490 is 9434283.

It is an interprime number because it is at equal distance from previous prime (38243483) and next prime (38243497).

It is not an unprimeable number, because it can be changed into a prime (38243497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1909 + ... + 8951.

It is an arithmetic number, because the mean of its divisors is an integer number (2884518).

Almost surely, 2^38243490 is an apocalyptic number.

38243490 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

38243490 is an abundant number, since it is smaller than the sum of its proper divisors (54061086).

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

38243490 is a wasteful number, since it uses less digits than its factorization.

38243490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7234.

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 38243490 is about 6184.1321137246. The cubic root of 38243490 is about 336.9140890523.

The spelling of 38243490 in words is "thirty-eight million, two hundred forty-three thousand, four hundred ninety".