2732431 has 4 divisors (see below), whose sum is σ = 2942632. Its totient is φ = 2522232.

The previous prime is 2732407. The next prime is 2732437. The reversal of 2732431 is 1342372.

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 2732431 - 2¹¹ = 2730383 is a prime.

It is a super-2 number, since 2×2732431² = 14932358339522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2732437) 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, 105081 + ... + 105106.

It is an arithmetic number, because the mean of its divisors is an integer number (735658).

2^2732431 is an apocalyptic number.

2732431 is a deficient number, since it is larger than the sum of its proper divisors (210201).

2732431 is a wasteful number, since it uses less digits than its factorization.

2732431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210200.

The product of its digits is 1008, while the sum is 22.

The square root of 2732431 is about 1653.0066545541. The cubic root of 2732431 is about 139.8029711410.

Subtracting from 2732431 its sum of digits (22), we obtain a square (2732409 = 1653²).

It can be divided in two parts, 273 and 2431, that added together give a square (2704 = 52²).

The spelling of 2732431 in words is "two million, seven hundred thirty-two thousand, four hundred thirty-one".