40066955 has 4 divisors (see below), whose sum is σ = 48080352. Its totient is φ = 32053560.

The previous prime is 40066931. The next prime is 40066969. The reversal of 40066955 is 55966004.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 40066955 - 2⁸ = 40066699 is a prime.

It is a Duffinian number.

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, 4006691 + ... + 4006700.

It is an arithmetic number, because the mean of its divisors is an integer number (12020088).

Almost surely, 2^40066955 is an apocalyptic number.

40066955 is a deficient number, since it is larger than the sum of its proper divisors (8013397).

40066955 is an equidigital number, since it uses as much as digits as its factorization.

40066955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8013396.

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 40066955 is about 6329.8463646442. The cubic root of 40066955 is about 342.1859020310.

The spelling of 40066955 in words is "forty million, sixty-six thousand, nine hundred fifty-five".