366667840 has 224 divisors, whose sum is σ = 1137659904. Its totient is φ = 109148160.

The previous prime is 366667823. The next prime is 366667843. The reversal of 366667840 is 48766663.

It is a tau number, because it is divible by the number of its divisors (224).

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (366667843) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 566397 + ... + 567043.

Almost surely, 2^366667840 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 366667840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (568829952).

366667840 is an abundant number, since it is smaller than the sum of its proper divisors (770992064).

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

366667840 is a wasteful number, since it uses less digits than its factorization.

366667840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 705 (or 695 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 46.

The square root of 366667840 is about 19148.5727927697. The cubic root of 366667840 is about 715.7438197981.

The spelling of 366667840 in words is "three hundred sixty-six million, six hundred sixty-seven thousand, eight hundred forty".