2232739 has 4 divisors (see below), whose sum is σ = 2309760. Its totient is φ = 2155720.

The previous prime is 2232701. The next prime is 2232749. The reversal of 2232739 is 9372322.

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 2232739 - 2¹¹ = 2230691 is a prime.

It is a super-3 number, since 3×2232739³ = 33391438587113398257, which contains 333 as substring.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2232749) 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, 38467 + ... + 38524.

It is an arithmetic number, because the mean of its divisors is an integer number (577440).

2^2232739 is an apocalyptic number.

2232739 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

2232739 is a deficient number, since it is larger than the sum of its proper divisors (77021).

2232739 is an equidigital number, since it uses as much as digits as its factorization.

2232739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77020.

The product of its digits is 4536, while the sum is 28.

The square root of 2232739 is about 1494.2352559085. The cubic root of 2232739 is about 130.7011231092.

It can be divided in two parts, 22327 and 39, that added together give a triangular number (22366 = T₂₁₁).

The spelling of 2232739 in words is "two million, two hundred thirty-two thousand, seven hundred thirty-nine".