246042391 has 4 divisors (see below), whose sum is σ = 281191312. Its totient is φ = 210893472.

The previous prime is 246042389. The next prime is 246042413. The reversal of 246042391 is 193240642.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 246042391 - 2¹ = 246042389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (246042301) 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, 17574450 + ... + 17574463.

It is an arithmetic number, because the mean of its divisors is an integer number (70297828).

Almost surely, 2^246042391 is an apocalyptic number.

246042391 is a deficient number, since it is larger than the sum of its proper divisors (35148921).

246042391 is an equidigital number, since it uses as much as digits as its factorization.

246042391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35148920.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 246042391 is about 15685.7384588677. The cubic root of 246042391 is about 626.6186446841.

The spelling of 246042391 in words is "two hundred forty-six million, forty-two thousand, three hundred ninety-one".