1229873946 has 64 divisors (see below), whose sum is σ = 2844979200. Its totient is φ = 347190336.

The previous prime is 1229873941. The next prime is 1229873947. The reversal of 1229873946 is 6493789221.

It is a super-2 number, since 2×1229873946² = 3025179846099221832, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1229873941) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1710175 + ... + 1710893.

It is an arithmetic number, because the mean of its divisors is an integer number (44452800).

Almost surely, 2^1229873946 is an apocalyptic number.

1229873946 is an abundant number, since it is smaller than the sum of its proper divisors (1615105254).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1229873946 is a wasteful number, since it uses less digits than its factorization.

1229873946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1163.

The product of its digits is 1306368, while the sum is 51.

The square root of 1229873946 is about 35069.5586798579. The cubic root of 1229873946 is about 1071.4046669613.

The spelling of 1229873946 in words is "one billion, two hundred twenty-nine million, eight hundred seventy-three thousand, nine hundred forty-six".