2723432 has 8 divisors (see below), whose sum is σ = 5106450. Its totient is φ = 1361712.

The previous prime is 2723431. The next prime is 2723437. The reversal of 2723432 is 2343272.

It can be written as a sum of positive squares in only one way, i.e., 1865956 + 857476 = 1366^2 + 926^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 2723398 and 2723407.

It is not an unprimeable number, because it can be changed into a prime (2723431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170207 + ... + 170222.

2^2723432 is an apocalyptic number.

It is an amenable number.

2723432 is a deficient number, since it is larger than the sum of its proper divisors (2383018).

2723432 is a wasteful number, since it uses less digits than its factorization.

2723432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340435 (or 340431 counting only the distinct ones).

The product of its digits is 2016, while the sum is 23.

The square root of 2723432 is about 1650.2824000758. The cubic root of 2723432 is about 139.6493264440.

The spelling of 2723432 in words is "two million, seven hundred twenty-three thousand, four hundred thirty-two".