38513490 has 32 divisors (see below), whose sum is σ = 92664000. Its totient is φ = 10244544.

The previous prime is 38513471. The next prime is 38513491. The reversal of 38513490 is 9431583.

38513490 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (38513491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12636 + ... + 15384.

It is an arithmetic number, because the mean of its divisors is an integer number (2895750).

Almost surely, 2^38513490 is an apocalyptic number.

38513490 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

38513490 is an abundant number, since it is smaller than the sum of its proper divisors (54150510).

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

38513490 is a wasteful number, since it uses less digits than its factorization.

38513490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3226.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 38513490 is about 6205.9237829674. The cubic root of 38513490 is about 337.7051044103.

The spelling of 38513490 in words is "thirty-eight million, five hundred thirteen thousand, four hundred ninety".