240921147 has 8 divisors (see below), whose sum is σ = 326494480. Its totient is φ = 157980960.

The previous prime is 240921139. The next prime is 240921173. The reversal of 240921147 is 741129042.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 240921147 - 2³ = 240921139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (240923147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 658072 + ... + 658437.

It is an arithmetic number, because the mean of its divisors is an integer number (40811810).

Almost surely, 2^240921147 is an apocalyptic number.

240921147 is a deficient number, since it is larger than the sum of its proper divisors (85573333).

240921147 is a wasteful number, since it uses less digits than its factorization.

240921147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1316573.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 240921147 is about 15521.6348043626. The cubic root of 240921147 is about 622.2405467050.

The spelling of 240921147 in words is "two hundred forty million, nine hundred twenty-one thousand, one hundred forty-seven".