240396427 has 4 divisors (see below), whose sum is σ = 240856600. Its totient is φ = 239936256.

The previous prime is 240396421. The next prime is 240396433. The reversal of 240396427 is 724693042.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (240396421) and next prime (240396433).

It is a cyclic number.

It is not a de Polignac number, because 240396427 - 2³ = 240396419 is a prime.

It is a super-2 number, since 2×240396427² = 115580884228732658, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (240396421) 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, 229302 + ... + 230347.

It is an arithmetic number, because the mean of its divisors is an integer number (60214150).

Almost surely, 2^240396427 is an apocalyptic number.

240396427 is a deficient number, since it is larger than the sum of its proper divisors (460173).

240396427 is an equidigital number, since it uses as much as digits as its factorization.

240396427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460172.

The product of its (nonzero) digits is 72576, while the sum is 37.

The square root of 240396427 is about 15504.7227321226. The cubic root of 240396427 is about 621.7884770982.

The spelling of 240396427 in words is "two hundred forty million, three hundred ninety-six thousand, four hundred twenty-seven".