2290745421 has 16 divisors (see below), whose sum is σ = 3541249920. Its totient is φ = 1460764800.

The previous prime is 2290745381. The next prime is 2290745447. The reversal of 2290745421 is 1245470922.

2290745421 is a `hidden beast` number, since 22 + 90 + 7 + 4 + 542 + 1 = 666.

It is not a de Polignac number, because 2290745421 - 2¹⁰ = 2290744397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2290746421) 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, 1843780 + ... + 1845021.

It is an arithmetic number, because the mean of its divisors is an integer number (221328120).

Almost surely, 2^2290745421 is an apocalyptic number.

It is an amenable number.

2290745421 is a deficient number, since it is larger than the sum of its proper divisors (1250504499).

2290745421 is a wasteful number, since it uses less digits than its factorization.

2290745421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3688833 (or 3688827 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 2290745421 is about 47861.7323234335. The cubic root of 2290745421 is about 1318.2332924591.

The spelling of 2290745421 in words is "two billion, two hundred ninety million, seven hundred forty-five thousand, four hundred twenty-one".