2490180421 has 4 divisors (see below), whose sum is σ = 2498187744. Its totient is φ = 2482173100.

The previous prime is 2490180419. The next prime is 2490180437. The reversal of 2490180421 is 1240810942.

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 2490180421 - 2¹ = 2490180419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2490180481) 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, 4003195 + ... + 4003816.

It is an arithmetic number, because the mean of its divisors is an integer number (624546936).

Almost surely, 2^2490180421 is an apocalyptic number.

It is an amenable number.

2490180421 is a deficient number, since it is larger than the sum of its proper divisors (8007323).

2490180421 is an equidigital number, since it uses as much as digits as its factorization.

2490180421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8007322.

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 2490180421 is about 49901.7075960332. The cubic root of 2490180421 is about 1355.4295141224.

The spelling of 2490180421 in words is "two billion, four hundred ninety million, one hundred eighty thousand, four hundred twenty-one".