38283990 has 16 divisors (see below), whose sum is σ = 91881648. Its totient is φ = 10209056.

The previous prime is 38283989. The next prime is 38284003. The reversal of 38283990 is 9938283.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 638037 + ... + 638096.

It is an arithmetic number, because the mean of its divisors is an integer number (5742603).

Almost surely, 2^38283990 is an apocalyptic number.

38283990 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

38283990 is an abundant number, since it is smaller than the sum of its proper divisors (53597658).

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

38283990 is a wasteful number, since it uses less digits than its factorization.

38283990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1276143.

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 38283990 is about 6187.4057568580. The cubic root of 38283990 is about 337.0329781908.

The spelling of 38283990 in words is "thirty-eight million, two hundred eighty-three thousand, nine hundred ninety".