2421269 has 4 divisors (see below), whose sum is σ = 2430540. Its totient is φ = 2412000.

The previous prime is 2421253. The next prime is 2421277. The reversal of 2421269 is 9621242.

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

It can be written as a sum of positive squares in 2 ways, for example, as 280900 + 2140369 = 530^2 + 1463^2 .

It is a cyclic number.

It is not a de Polignac number, because 2421269 - 2⁴ = 2421253 is a prime.

It is a super-2 number, since 2×2421269² = 11725087140722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2421229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4232 + ... + 4769.

It is an arithmetic number, because the mean of its divisors is an integer number (607635).

2^2421269 is an apocalyptic number.

It is an amenable number.

2421269 is a deficient number, since it is larger than the sum of its proper divisors (9271).

2421269 is an equidigital number, since it uses as much as digits as its factorization.

2421269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9270.

The product of its digits is 1728, while the sum is 26.

The square root of 2421269 is about 1556.0427372023. The cubic root of 2421269 is about 134.2809321089.

It can be divided in two parts, 2421 and 269, that multiplied together give a square (651249 = 807²).

The spelling of 2421269 in words is "two million, four hundred twenty-one thousand, two hundred sixty-nine".