2043240 has 32 divisors (see below), whose sum is σ = 6130080. Its totient is φ = 544832.

The previous prime is 2043199. The next prime is 2043257. The reversal of 2043240 is 423402.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8394 + ... + 8633.

It is an arithmetic number, because the mean of its divisors is an integer number (191565).

2^2043240 is an apocalyptic number.

2043240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2043240 is an abundant number, since it is smaller than the sum of its proper divisors (4086840).

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

2043240 is a wasteful number, since it uses less digits than its factorization.

2043240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17041 (or 17037 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 2043240 is about 1429.4194625791. The cubic root of 2043240 is about 126.8936220411.

Adding to 2043240 its reverse (423402), we get a palindrome (2466642).

The spelling of 2043240 in words is "two million, forty-three thousand, two hundred forty".