2420922421 has 4 divisors (see below), whose sum is σ = 2422376352. Its totient is φ = 2419468492.

The previous prime is 2420922419. The next prime is 2420922437. The reversal of 2420922421 is 1242290242.

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 2420922421 - 2¹ = 2420922419 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2420922421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2420922461) 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, 724465 + ... + 727798.

It is an arithmetic number, because the mean of its divisors is an integer number (605594088).

Almost surely, 2^2420922421 is an apocalyptic number.

It is an amenable number.

2420922421 is a deficient number, since it is larger than the sum of its proper divisors (1453931).

2420922421 is a wasteful number, since it uses less digits than its factorization.

2420922421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1453930.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 2420922421 is about 49202.8700484027. The cubic root of 2420922421 is about 1342.7452483902.

The spelling of 2420922421 in words is "two billion, four hundred twenty million, nine hundred twenty-two thousand, four hundred twenty-one".