38830240 has 24 divisors (see below), whose sum is σ = 91736820. Its totient is φ = 15532032.

The previous prime is 38830237. The next prime is 38830241. The reversal of 38830240 is 4203883.

It can be written as a sum of positive squares in 2 ways, for example, as 36048016 + 2782224 = 6004^2 + 1668^2 .

It is a junction number, because it is equal to n+sod(n) for n = 38830199 and 38830208.

It is not an unprimeable number, because it can be changed into a prime (38830241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121185 + ... + 121504.

Almost surely, 2^38830240 is an apocalyptic number.

It is an amenable number.

38830240 is an abundant number, since it is smaller than the sum of its proper divisors (52906580).

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

38830240 is a wasteful number, since it uses less digits than its factorization.

38830240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242704 (or 242696 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 38830240 is about 6231.3914978919. The cubic root of 38830240 is about 338.6283841517.

It can be divided in two parts, 388 and 30240, that added together give a triangular number (30628 = T₂₄₇).

The spelling of 38830240 in words is "thirty-eight million, eight hundred thirty thousand, two hundred forty".