2842457 has 4 divisors (see below), whose sum is σ = 2992080. Its totient is φ = 2692836.

The previous prime is 2842439. The next prime is 2842459. The reversal of 2842457 is 7542482.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2842457 - 2¹⁴ = 2826073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2842459) 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, 74783 + ... + 74820.

It is an arithmetic number, because the mean of its divisors is an integer number (748020).

2^2842457 is an apocalyptic number.

It is an amenable number.

2842457 is a deficient number, since it is larger than the sum of its proper divisors (149623).

2842457 is a wasteful number, since it uses less digits than its factorization.

2842457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149622.

The product of its digits is 17920, while the sum is 32.

The square root of 2842457 is about 1685.9587776693. The cubic root of 2842457 is about 141.6548019283.

The spelling of 2842457 in words is "two million, eight hundred forty-two thousand, four hundred fifty-seven".