2942391 has 8 divisors (see below), whose sum is σ = 3953664. Its totient is φ = 1946360.

The previous prime is 2942383. The next prime is 2942399. The reversal of 2942391 is 1932492.

It is an interprime number because it is at equal distance from previous prime (2942383) and next prime (2942399).

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

It is a cyclic number.

It is not a de Polignac number, because 2942391 - 2³ = 2942383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2942399) 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, 3351 + ... + 4136.

It is an arithmetic number, because the mean of its divisors is an integer number (494208).

2^2942391 is an apocalyptic number.

2942391 is a deficient number, since it is larger than the sum of its proper divisors (1011273).

2942391 is a wasteful number, since it uses less digits than its factorization.

2942391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7621.

The product of its digits is 3888, while the sum is 30.

The square root of 2942391 is about 1715.3399080066. The cubic root of 2942391 is about 143.2957999193.

It can be divided in two parts, 2942 and 391, that added together give a palindrome (3333).

The spelling of 2942391 in words is "two million, nine hundred forty-two thousand, three hundred ninety-one".