1418309252 has 18 divisors (see below), whose sum is σ = 2628619182. Its totient is φ = 667293504.

The previous prime is 1418309219. The next prime is 1418309261. The reversal of 1418309252 is 2529038141.

It can be written as a sum of positive squares in only one way, i.e., 1334879296 + 83429956 = 36536^2 + 9134^2 .

It is a super-2 number, since 2×1418309252² = 4023202268617599008, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 308273 + ... + 312839.

It is an arithmetic number, because the mean of its divisors is an integer number (146034399).

Almost surely, 2^1418309252 is an apocalyptic number.

It is an amenable number.

1418309252 is a deficient number, since it is larger than the sum of its proper divisors (1210309930).

1418309252 is an frugal number, since it uses more digits than its factorization.

1418309252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9155 (or 4586 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 1418309252 is about 37660.4467843917. The cubic root of 1418309252 is about 1123.5445876076.

The spelling of 1418309252 in words is "one billion, four hundred eighteen million, three hundred nine thousand, two hundred fifty-two".