2400506 has 4 divisors (see below), whose sum is σ = 3600762. Its totient is φ = 1200252.

The previous prime is 2400481. The next prime is 2400511. The reversal of 2400506 is 6050042.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2088025 + 312481 = 1445^2 + 559^2 .

It is a plaindrome in base 9.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600125 + ... + 600128.

2^2400506 is an apocalyptic number.

2400506 is a deficient number, since it is larger than the sum of its proper divisors (1200256).

2400506 is a wasteful number, since it uses less digits than its factorization.

2400506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1200255.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 2400506 is about 1549.3566406738. The cubic root of 2400506 is about 133.8959986073.

Adding to 2400506 its reverse (6050042), we get a palindrome (8450548).

The spelling of 2400506 in words is "two million, four hundred thousand, five hundred six".