2257122428 has 12 divisors (see below), whose sum is σ = 4309051992. Its totient is φ = 1025964720.

The previous prime is 2257122397. The next prime is 2257122473. The reversal of 2257122428 is 8242217522.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25649075 + ... + 25649162.

It is an arithmetic number, because the mean of its divisors is an integer number (359087666).

Almost surely, 2^2257122428 is an apocalyptic number.

It is an amenable number.

2257122428 is a deficient number, since it is larger than the sum of its proper divisors (2051929564).

2257122428 is a wasteful number, since it uses less digits than its factorization.

2257122428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51298252 (or 51298250 counting only the distinct ones).

The product of its digits is 35840, while the sum is 35.

The square root of 2257122428 is about 47509.1825650579. The cubic root of 2257122428 is about 1311.7519104763.

The spelling of 2257122428 in words is "two billion, two hundred fifty-seven million, one hundred twenty-two thousand, four hundred twenty-eight".