2923040 has 24 divisors (see below), whose sum is σ = 6906060. Its totient is φ = 1169152.

The previous prime is 2923033. The next prime is 2923043. The reversal of 2923040 is 403292.

It can be written as a sum of positive squares in 2 ways, for example, as 2917264 + 5776 = 1708^2 + 76^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (2923043) 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, 8975 + ... + 9294.

2^2923040 is an apocalyptic number.

2923040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2923040 is an abundant number, since it is smaller than the sum of its proper divisors (3983020).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2923040 is a wasteful number, since it uses less digits than its factorization.

2923040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18284 (or 18276 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 2923040 is about 1709.6900303856. The cubic root of 2923040 is about 142.9809745338.

The spelling of 2923040 in words is "two million, nine hundred twenty-three thousand, forty".