2402569 has 16 divisors (see below), whose sum is σ = 2782080. Its totient is φ = 2056320.

The previous prime is 2402567. The next prime is 2402573. The reversal of 2402569 is 9652042.

It is a cyclic number.

It is not a de Polignac number, because 2402569 - 2¹ = 2402567 is a prime.

It is a super-2 number, since 2×2402569² = 11544675599522, which contains 22 as substring.

It is a Duffinian number.

2402569 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2402567) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17469 + ... + 17605.

It is an arithmetic number, because the mean of its divisors is an integer number (173880).

2^2402569 is an apocalyptic number.

It is an amenable number.

2402569 is a deficient number, since it is larger than the sum of its proper divisors (379511).

2402569 is a wasteful number, since it uses less digits than its factorization.

2402569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 2402569 is about 1550.0222579047. The cubic root of 2402569 is about 133.9343444606.

It can be divided in two parts, 240 and 2569, that added together give a square (2809 = 53²).

The spelling of 2402569 in words is "two million, four hundred two thousand, five hundred sixty-nine".