2400434 has 12 divisors (see below), whose sum is σ = 3825834.
Its totient is φ = 1129344.
The previous prime is 2400413. The next prime is 2400469. The reversal of 2400434 is 4340042.
It can be written as a sum of positive squares in 3 ways, for example, as 1974025 + 426409 = 1405^2 + 653^2
It is a Harshad number since it is a multiple of its sum of digits (17).
It is an unprimeable number.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1499 + ... + 2654.
22400434 is an apocalyptic number.
2400434 is a deficient number, since it is larger than the sum of its proper divisors (1425400).
2400434 is a wasteful number, since it uses less digits than its factorization.
2400434 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4189 (or 4172 counting only the distinct ones).
The product of its (nonzero) digits is 384, while the sum is 17.
The square root of 2400434 is about 1549.3334050488.
Note that the first 3 decimals coincide.
The cubic root of 2400434 is about 133.8946599161.
Adding to 2400434 its reverse (4340042), we get a palindrome (6740476).
The spelling of 2400434 in words is "two million, four hundred thousand, four hundred thirty-four".