6660402 has 16 divisors (see below), whose sum is σ = 15223872. Its totient is φ = 1902960.

The previous prime is 6660397. The next prime is 6660419. The reversal of 6660402 is 2040666.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79249 + ... + 79332.

It is an arithmetic number, because the mean of its divisors is an integer number (951492).

Almost surely, 2^6660402 is an apocalyptic number.

6660402 is an abundant number, since it is smaller than the sum of its proper divisors (8563470).

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

6660402 is a wasteful number, since it uses less digits than its factorization.

6660402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158593.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 6660402 is about 2580.7754648555. The cubic root of 6660402 is about 188.1482345302.

The spelling of 6660402 in words is "six million, six hundred sixty thousand, four hundred two".