366661644 has 48 divisors (see below), whose sum is σ = 907226208. Its totient is φ = 114859008.

The previous prime is 366661637. The next prime is 366661681. The reversal of 366661644 is 446166663.

It is a super-2 number, since 2×366661644² = 268881522361565472, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 366661596 and 366661605.

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 15 ways as a sum of consecutive naturals, for example, 251622 + ... + 253074.

It is an arithmetic number, because the mean of its divisors is an integer number (18900546).

Almost surely, 2^366661644 is an apocalyptic number.

366661644 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

366661644 is an abundant number, since it is smaller than the sum of its proper divisors (540564564).

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

366661644 is a wasteful number, since it uses less digits than its factorization.

366661644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2714 (or 2712 counting only the distinct ones).

The product of its digits is 373248, while the sum is 42.

The square root of 366661644 is about 19148.4110045716. The cubic root of 366661644 is about 715.7397881986.

The spelling of 366661644 in words is "three hundred sixty-six million, six hundred sixty-one thousand, six hundred forty-four".