2453939 has 4 divisors (see below), whose sum is σ = 2560656. Its totient is φ = 2347224.

The previous prime is 2453923. The next prime is 2453999. The reversal of 2453939 is 9393542.

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 2453939 - 2⁴ = 2453923 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2453899 and 2453908.

It is not an unprimeable number, because it can be changed into a prime (2453909) 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, 53324 + ... + 53369.

It is an arithmetic number, because the mean of its divisors is an integer number (640164).

2^2453939 is an apocalyptic number.

2453939 is a deficient number, since it is larger than the sum of its proper divisors (106717).

2453939 is a wasteful number, since it uses less digits than its factorization.

2453939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106716.

The product of its digits is 29160, while the sum is 35.

The square root of 2453939 is about 1566.5053463043. The cubic root of 2453939 is about 134.8821834465.

It can be divided in two parts, 2 and 453939, that multiplied together give a triangular number (907878 = T₁₃₄₇).

The spelling of 2453939 in words is "two million, four hundred fifty-three thousand, nine hundred thirty-nine".