2732040 has 48 divisors (see below), whose sum is σ = 8880300. Its totient is φ = 728448.

The previous prime is 2732027. The next prime is 2732047. The reversal of 2732040 is 402372.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2304324 + 427716 = 1518^2 + 654^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (2732047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3435 + ... + 4154.

2^2732040 is an apocalyptic number.

2732040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2732040 is an abundant number, since it is smaller than the sum of its proper divisors (6148260).

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

2732040 is a wasteful number, since it uses less digits than its factorization.

2732040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7606 (or 7599 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 18.

The square root of 2732040 is about 1652.8883809864. Note that the first 3 decimals coincide. The cubic root of 2732040 is about 139.7963024067.

The spelling of 2732040 in words is "two million, seven hundred thirty-two thousand, forty".