1252822016 has 22 divisors (see below), whose sum is σ = 2504422620. Its totient is φ = 626410496.

The previous prime is 1252822013. The next prime is 1252822049. The reversal of 1252822016 is 6102282521.

It is a self number, because there is not a number n which added to its sum of digits gives 1252822016.

It is not an unprimeable number, because it can be changed into a prime (1252822013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610706 + ... + 612753.

Almost surely, 2^1252822016 is an apocalyptic number.

1252822016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1252822016 is a deficient number, since it is larger than the sum of its proper divisors (1251600604).

1252822016 is an equidigital number, since it uses as much as digits as its factorization.

1252822016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1223479 (or 1223461 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 1252822016 is about 35395.2258927670. The cubic root of 1252822016 is about 1078.0273822934.

The spelling of 1252822016 in words is "one billion, two hundred fifty-two million, eight hundred twenty-two thousand, sixteen".