38513700 has 54 divisors (see below), whose sum is σ = 120721874. Its totient is φ = 10270080.

The previous prime is 38513693. The next prime is 38513731. The reversal of 38513700 is 731583.

It can be written as a sum of positive squares in 3 ways, for example, as 2585664 + 35928036 = 1608^2 + 5994^2 .

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 17 ways as a sum of consecutive naturals, for example, 20497 + ... + 22296.

Almost surely, 2^38513700 is an apocalyptic number.

38513700 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

38513700 is an abundant number, since it is smaller than the sum of its proper divisors (82208174).

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

38513700 is a wasteful number, since it uses less digits than its factorization.

38513700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42813 (or 42803 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 38513700 is about 6205.9407022626. The cubic root of 38513700 is about 337.7057182034.

The spelling of 38513700 in words is "thirty-eight million, five hundred thirteen thousand, seven hundred".