38227540 has 24 divisors (see below), whose sum is σ = 86453640. Its totient is φ = 14114688.

The previous prime is 38227537. The next prime is 38227571. The reversal of 38227540 is 4572283.

It can be written as a sum of positive squares in 4 ways, for example, as 4145296 + 34082244 = 2036^2 + 5838^2 .

It is a super-2 number, since 2×38227540² = 2922689628903200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73255 + ... + 73774.

It is an arithmetic number, because the mean of its divisors is an integer number (3602235).

Almost surely, 2^38227540 is an apocalyptic number.

It is an amenable number.

38227540 is an abundant number, since it is smaller than the sum of its proper divisors (48226100).

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

38227540 is a wasteful number, since it uses less digits than its factorization.

38227540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147051 (or 147049 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 38227540 is about 6182.8423884165. The cubic root of 38227540 is about 336.8672442432.

The spelling of 38227540 in words is "thirty-eight million, two hundred twenty-seven thousand, five hundred forty".