366220640 has 24 divisors (see below), whose sum is σ = 865196640. Its totient is φ = 146488192.

The previous prime is 366220609. The next prime is 366220643. The reversal of 366220640 is 46022663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (366220643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1144280 + ... + 1144599.

It is an arithmetic number, because the mean of its divisors is an integer number (36049860).

Almost surely, 2^366220640 is an apocalyptic number.

It is an amenable number.

366220640 is an abundant number, since it is smaller than the sum of its proper divisors (498976000).

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

366220640 is a wasteful number, since it uses less digits than its factorization.

366220640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2288894 (or 2288886 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 366220640 is about 19136.8921196729. The cubic root of 366220640 is about 715.4527199556.

The spelling of 366220640 in words is "three hundred sixty-six million, two hundred twenty thousand, six hundred forty".