38147240 has 16 divisors (see below), whose sum is σ = 85831380. Its totient is φ = 15258880.

The previous prime is 38147203. The next prime is 38147243. The reversal of 38147240 is 4274183.

It can be written as a sum of positive squares in 2 ways, for example, as 37625956 + 521284 = 6134^2 + 722^2 .

It is not an unprimeable number, because it can be changed into a prime (38147243) 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, 476801 + ... + 476880.

Almost surely, 2^38147240 is an apocalyptic number.

It is an amenable number.

38147240 is an abundant number, since it is smaller than the sum of its proper divisors (47684140).

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

38147240 is a wasteful number, since it uses less digits than its factorization.

38147240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 953692 (or 953688 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 38147240 is about 6176.3451976068. The cubic root of 38147240 is about 336.6312067130.

The spelling of 38147240 in words is "thirty-eight million, one hundred forty-seven thousand, two hundred forty".