40923966 has 16 divisors (see below), whose sum is σ = 81913104. Its totient is φ = 13630464.

The previous prime is 40923943. The next prime is 40923977. The reversal of 40923966 is 66932904.

It is a happy number.

It is a Curzon number.

It is a congruent number.

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, 10110 + ... + 13566.

It is an arithmetic number, because the mean of its divisors is an integer number (5119569).

Almost surely, 2^40923966 is an apocalyptic number.

40923966 is an abundant number, since it is smaller than the sum of its proper divisors (40989138).

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

40923966 is a wasteful number, since it uses less digits than its factorization.

40923966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5435.

The product of its (nonzero) digits is 69984, while the sum is 39.

The square root of 40923966 is about 6397.1842243287. The cubic root of 40923966 is about 344.6084362433.

The spelling of 40923966 in words is "forty million, nine hundred twenty-three thousand, nine hundred sixty-six".