365742666 has 48 divisors (see below), whose sum is σ = 844771200. Its totient is φ = 114027264.

The previous prime is 365742617. The next prime is 365742679. The reversal of 365742666 is 666247563.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20250 + ... + 33786.

It is an arithmetic number, because the mean of its divisors is an integer number (17599400).

Almost surely, 2^365742666 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 365742666, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (422385600).

365742666 is an abundant number, since it is smaller than the sum of its proper divisors (479028534).

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

365742666 is a wasteful number, since it uses less digits than its factorization.

365742666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13643 (or 13640 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 45.

The square root of 365742666 is about 19124.3997552864. The cubic root of 365742666 is about 715.1413260013.

The spelling of 365742666 in words is "three hundred sixty-five million, seven hundred forty-two thousand, six hundred sixty-six".