1226642475 has 48 divisors (see below), whose sum is σ = 2073867264. Its totient is φ = 639600000.

The previous prime is 1226642447. The next prime is 1226642479. The reversal of 1226642475 is 5742466221.

It is not a de Polignac number, because 1226642475 - 2²⁰ = 1225593899 is a prime.

It is a super-2 number, since 2×1226642475² = 3009303522948251250, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1226642479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 627750 + ... + 629700.

It is an arithmetic number, because the mean of its divisors is an integer number (43205568).

Almost surely, 2^1226642475 is an apocalyptic number.

1226642475 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1226642475 is a deficient number, since it is larger than the sum of its proper divisors (847224789).

1226642475 is a wasteful number, since it uses less digits than its factorization.

1226642475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2148 (or 2143 counting only the distinct ones).

The product of its digits is 161280, while the sum is 39.

The square root of 1226642475 is about 35023.4560687548. The cubic root of 1226642475 is about 1070.4654786116.

The spelling of 1226642475 in words is "one billion, two hundred twenty-six million, six hundred forty-two thousand, four hundred seventy-five".