2400099 has 32 divisors (see below), whose sum is σ = 3763200. Its totient is φ = 1347840.

The previous prime is 2400089. The next prime is 2400107. The reversal of 2400099 is 9900042.

2400099 = 36² + 37² + ... + 193².

It is not a de Polignac number, because 2400099 - 2⁵ = 2400067 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2400019) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30342 + ... + 30420.

It is an arithmetic number, because the mean of its divisors is an integer number (117600).

2^2400099 is an apocalyptic number.

2400099 is a deficient number, since it is larger than the sum of its proper divisors (1363101).

2400099 is a wasteful number, since it uses less digits than its factorization.

2400099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 2400099 is about 1549.2252902661. The cubic root of 2400099 is about 133.8884309317. Note that the first 3 decimals are identical.

It can be divided in two parts, 240009 and 9, that multiplied together give a triangular number (2160081 = T₂₀₇₈).

The spelling of 2400099 in words is "two million, four hundred thousand, ninety-nine".