2400069 has 24 divisors (see below), whose sum is σ = 3857760. Its totient is φ = 1321824.

The previous prime is 2400067. The next prime is 2400089. The reversal of 2400069 is 9600042.

2400069 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2400069 - 2¹ = 2400067 is a prime.

It is a super-2 number, since 2×2400069² = 11520662409522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2400067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3982 + ... + 4544.

It is an arithmetic number, because the mean of its divisors is an integer number (160740).

2^2400069 is an apocalyptic number.

2400069 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

2400069 is a deficient number, since it is larger than the sum of its proper divisors (1457691).

2400069 is a wasteful number, since it uses less digits than its factorization.

2400069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 609 (or 602 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 2400069 is about 1549.2156079771. The cubic root of 2400069 is about 133.8878730840.

The spelling of 2400069 in words is "two million, four hundred thousand, sixty-nine".