2540234 has 8 divisors (see below), whose sum is σ = 3817380. Its totient is φ = 1267776.

The previous prime is 2540231. The next prime is 2540249. The reversal of 2540234 is 4320452.

It can be written as a sum of positive squares in 2 ways, for example, as 2111209 + 429025 = 1453^2 + 655^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (2540231) 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, 962 + ... + 2450.

2^2540234 is an apocalyptic number.

2540234 is a deficient number, since it is larger than the sum of its proper divisors (1277146).

2540234 is a wasteful number, since it uses less digits than its factorization.

2540234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2344.

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 2540234 is about 1593.8111556894. The cubic root of 2540234 is about 136.4450887650.

Adding to 2540234 its reverse (4320452), we get a palindrome (6860686).

The spelling of 2540234 in words is "two million, five hundred forty thousand, two hundred thirty-four".