40430666 has 8 divisors (see below), whose sum is σ = 61500384. Its totient is φ = 19930540.

The previous prime is 40430659. The next prime is 40430671. The reversal of 40430666 is 66603404.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142220 + ... + 142503.

It is an arithmetic number, because the mean of its divisors is an integer number (7687548).

Almost surely, 2^40430666 is an apocalyptic number.

40430666 is a deficient number, since it is larger than the sum of its proper divisors (21069718).

40430666 is a wasteful number, since it uses less digits than its factorization.

40430666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284796.

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

The square root of 40430666 is about 6358.5113037566. The cubic root of 40430666 is about 343.2181914041.

The spelling of 40430666 in words is "forty million, four hundred thirty thousand, six hundred sixty-six".