2394021 has 8 divisors (see below), whose sum is σ = 3648064. Its totient is φ = 1368000.

The previous prime is 2394017. The next prime is 2394023. The reversal of 2394021 is 1204932.

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

It is not a de Polignac number, because 2394021 - 2² = 2394017 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 114001 = 2394021 / (2 + 3 + 9 + 4 + 0 + 2 + 1).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2394023) 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, 56980 + ... + 57021.

It is an arithmetic number, because the mean of its divisors is an integer number (456008).

2^2394021 is an apocalyptic number.

2394021 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2394021 is a deficient number, since it is larger than the sum of its proper divisors (1254043).

2394021 is a wasteful number, since it uses less digits than its factorization.

2394021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114011.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 2394021 is about 1547.2624211814. The cubic root of 2394021 is about 133.7753159055.

Adding to 2394021 its reverse (1204932), we get a palindrome (3598953).

The spelling of 2394021 in words is "two million, three hundred ninety-four thousand, twenty-one".