1402401666 has 32 divisors (see below), whose sum is σ = 2954635200. Its totient is φ = 442532160.

The previous prime is 1402401659. The next prime is 1402401667. The reversal of 1402401666 is 6661042041.

1402401666 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (1402401667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 181000 + ... + 188588.

It is an arithmetic number, because the mean of its divisors is an integer number (92332350).

Almost surely, 2^1402401666 is an apocalyptic number.

1402401666 is an abundant number, since it is smaller than the sum of its proper divisors (1552233534).

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

1402401666 is a wasteful number, since it uses less digits than its factorization.

1402401666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9234.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 1402401666 is about 37448.6537274706. The cubic root of 1402401666 is about 1119.3282712068.

The spelling of 1402401666 in words is "one billion, four hundred two million, four hundred one thousand, six hundred sixty-six".