38249140 has 12 divisors (see below), whose sum is σ = 80323236. Its totient is φ = 15299648.

The previous prime is 38249131. The next prime is 38249177. The reversal of 38249140 is 4194283.

It can be written as a sum of positive squares in 2 ways, for example, as 28174864 + 10074276 = 5308^2 + 3174^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 956209 + ... + 956248.

It is an arithmetic number, because the mean of its divisors is an integer number (6693603).

Almost surely, 2^38249140 is an apocalyptic number.

It is an amenable number.

38249140 is an abundant number, since it is smaller than the sum of its proper divisors (42074096).

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

38249140 is a wasteful number, since it uses less digits than its factorization.

38249140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1912466 (or 1912464 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 38249140 is about 6184.5889111565. The cubic root of 38249140 is about 336.9306798575.

The spelling of 38249140 in words is "thirty-eight million, two hundred forty-nine thousand, one hundred forty".