1146663220 has 24 divisors (see below), whose sum is σ = 2415748608. Its totient is φ = 457188000.

The previous prime is 1146663211. The next prime is 1146663283. The reversal of 1146663220 is 223666411.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85956 + ... + 98395.

It is an arithmetic number, because the mean of its divisors is an integer number (100656192).

Almost surely, 2^1146663220 is an apocalyptic number.

1146663220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1146663220 is an abundant number, since it is smaller than the sum of its proper divisors (1269085388).

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

1146663220 is a wasteful number, since it uses less digits than its factorization.

1146663220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184671 (or 184669 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 1146663220 is about 33862.4160390247. The cubic root of 1146663220 is about 1046.6752644206.

The spelling of 1146663220 in words is "one billion, one hundred forty-six million, six hundred sixty-three thousand, two hundred twenty".