2731924 has 24 divisors (see below), whose sum is σ = 5207328. Its totient is φ = 1246560.

The previous prime is 2731921. The next prime is 2731933. The reversal of 2731924 is 4291372.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 2731892 and 2731901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2731921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5319 + ... + 5809.

It is an arithmetic number, because the mean of its divisors is an integer number (216972).

2^2731924 is an apocalyptic number.

It is an amenable number.

2731924 is a deficient number, since it is larger than the sum of its proper divisors (2475404).

2731924 is a wasteful number, since it uses less digits than its factorization.

2731924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615 (or 613 counting only the distinct ones).

The product of its digits is 3024, while the sum is 28.

The square root of 2731924 is about 1652.8532905252. The cubic root of 2731924 is about 139.7943238363.

It can be divided in two parts, 2731 and 924, that added together give a triangular number (3655 = T₈₅).

The spelling of 2731924 in words is "two million, seven hundred thirty-one thousand, nine hundred twenty-four".