1466668438 has 16 divisors (see below), whose sum is σ = 2334996720. Its totient is φ = 688542976.

The previous prime is 1466668403. The next prime is 1466668457. The reversal of 1466668438 is 8348666641.

It is a super-2 number, since 2×1466668438² = 4302232614050719688, which contains 22 as substring.

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, 37231 + ... + 65722.

It is an arithmetic number, because the mean of its divisors is an integer number (145937295).

Almost surely, 2^1466668438 is an apocalyptic number.

1466668438 is a deficient number, since it is larger than the sum of its proper divisors (868328282).

1466668438 is a wasteful number, since it uses less digits than its factorization.

1466668438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103391.

The product of its digits is 3981312, while the sum is 52.

The square root of 1466668438 is about 38297.1074364631. The cubic root of 1466668438 is about 1136.1717379673.

The spelling of 1466668438 in words is "one billion, four hundred sixty-six million, six hundred sixty-eight thousand, four hundred thirty-eight".