2342739 has 12 divisors (see below), whose sum is σ = 3633864. Its totient is φ = 1338624.

The previous prime is 2342731. The next prime is 2342741. The reversal of 2342739 is 9372432.

It is not a de Polignac number, because 2342739 - 2³ = 2342731 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2342731) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7822 + ... + 8115.

It is an arithmetic number, because the mean of its divisors is an integer number (302822).

2^2342739 is an apocalyptic number.

2342739 is a deficient number, since it is larger than the sum of its proper divisors (1291125).

2342739 is a wasteful number, since it uses less digits than its factorization.

2342739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15954 (or 15947 counting only the distinct ones).

The product of its digits is 9072, while the sum is 30.

The square root of 2342739 is about 1530.6008624067. The cubic root of 2342739 is about 132.8132188842.

It can be divided in two parts, 2342 and 739, that added together give a triangular number (3081 = T₇₈).

The spelling of 2342739 in words is "two million, three hundred forty-two thousand, seven hundred thirty-nine".