2228921457 has 12 divisors (see below), whose sum is σ = 3457102896. Its totient is φ = 1273669320.

The previous prime is 2228921441. The next prime is 2228921479. The reversal of 2228921457 is 7541298222.

It is not a de Polignac number, because 2228921457 - 2⁴ = 2228921441 is a prime.

It is a super-2 number, since 2×2228921457² = 9936181722950005698, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2228921437) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7581219 + ... + 7581512.

It is an arithmetic number, because the mean of its divisors is an integer number (288091908).

Almost surely, 2^2228921457 is an apocalyptic number.

It is an amenable number.

2228921457 is a deficient number, since it is larger than the sum of its proper divisors (1228181439).

2228921457 is a wasteful number, since it uses less digits than its factorization.

2228921457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15162748 (or 15162741 counting only the distinct ones).

The product of its digits is 161280, while the sum is 42.

The square root of 2228921457 is about 47211.4547223447. The cubic root of 2228921457 is about 1306.2658957278.

The spelling of 2228921457 in words is "two billion, two hundred twenty-eight million, nine hundred twenty-one thousand, four hundred fifty-seven".