38047140 has 36 divisors (see below), whose sum is σ = 115410204. Its totient is φ = 10145856.

The previous prime is 38047133. The next prime is 38047147. The reversal of 38047140 is 4174083.

It is an interprime number because it is at equal distance from previous prime (38047133) and next prime (38047147).

It can be written as a sum of positive squares in 2 ways, for example, as 14017536 + 24029604 = 3744^2 + 4902^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (38047147) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 105507 + ... + 105866.

It is an arithmetic number, because the mean of its divisors is an integer number (3205839).

Almost surely, 2^38047140 is an apocalyptic number.

38047140 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

38047140 is an abundant number, since it is smaller than the sum of its proper divisors (77363064).

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

38047140 is a wasteful number, since it uses less digits than its factorization.

38047140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211388 (or 211383 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 38047140 is about 6168.2363767936. The cubic root of 38047140 is about 336.3365038654.

The spelling of 38047140 in words is "thirty-eight million, forty-seven thousand, one hundred forty".