40266997 has 8 divisors (see below), whose sum is σ = 42235776. Its totient is φ = 38316432.

The previous prime is 40266991. The next prime is 40267009. The reversal of 40266997 is 79966204.

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

It is a cyclic number.

It is not a de Polignac number, because 40266997 - 2¹¹ = 40264949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40266991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88 + ... + 8974.

It is an arithmetic number, because the mean of its divisors is an integer number (5279472).

Almost surely, 2^40266997 is an apocalyptic number.

It is an amenable number.

40266997 is a deficient number, since it is larger than the sum of its proper divisors (1968779).

40266997 is a wasteful number, since it uses less digits than its factorization.

40266997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9107.

The product of its (nonzero) digits is 163296, while the sum is 43.

The square root of 40266997 is about 6345.6281800938. The cubic root of 40266997 is about 342.7544332804.

The spelling of 40266997 in words is "forty million, two hundred sixty-six thousand, nine hundred ninety-seven".