2470421 has 4 divisors (see below), whose sum is σ = 2550144. Its totient is φ = 2390700.

The previous prime is 2470417. The next prime is 2470427. The reversal of 2470421 is 1240742.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2470421 - 2² = 2470417 is a prime.

It is a super-2 number, since 2×2470421² = 12205959834482, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2470393 and 2470402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2470427) 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, 39815 + ... + 39876.

It is an arithmetic number, because the mean of its divisors is an integer number (637536).

2^2470421 is an apocalyptic number.

It is an amenable number.

2470421 is a deficient number, since it is larger than the sum of its proper divisors (79723).

2470421 is an equidigital number, since it uses as much as digits as its factorization.

2470421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79722.

The product of its (nonzero) digits is 448, while the sum is 20.

The square root of 2470421 is about 1571.7572967860. The cubic root of 2470421 is about 135.1834907715.

The spelling of 2470421 in words is "two million, four hundred seventy thousand, four hundred twenty-one".