340291872 has 54 divisors (see below), whose sum is σ = 968596083. Its totient is φ = 113326272.

The previous prime is 340291871. The next prime is 340291879. The reversal of 340291872 is 278192043.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 170145936 + 170145936 = 13044^2 + 13044^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=13044.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (340291871) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 312513 + ... + 313599.

Almost surely, 2^340291872 is an apocalyptic number.

340291872 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

340291872 is an abundant number, since it is smaller than the sum of its proper divisors (628304211).

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

340291872 is an equidigital number, since it uses as much as digits as its factorization.

340291872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2190 (or 1092 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 340291872 is about 18447.0017075947. The cubic root of 340291872 is about 698.1528661941.

The spelling of 340291872 in words is "three hundred forty million, two hundred ninety-one thousand, eight hundred seventy-two".