40806951 has 16 divisors (see below), whose sum is σ = 55931904. Its totient is φ = 26451104.

The previous prime is 40806947. The next prime is 40806971. The reversal of 40806951 is 15960804.

It is a cyclic number.

It is not a de Polignac number, because 40806951 - 2² = 40806947 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40806971) 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, 22681 + ... + 24413.

It is an arithmetic number, because the mean of its divisors is an integer number (3495744).

Almost surely, 2^40806951 is an apocalyptic number.

40806951 is a deficient number, since it is larger than the sum of its proper divisors (15124953).

40806951 is a wasteful number, since it uses less digits than its factorization.

40806951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1950.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 40806951 is about 6388.0318565267. The cubic root of 40806951 is about 344.2796732976.

The spelling of 40806951 in words is "forty million, eight hundred six thousand, nine hundred fifty-one".