40943397 has 8 divisors (see below), whose sum is σ = 59554080. Its totient is φ = 24814160.

The previous prime is 40943393. The next prime is 40943431. The reversal of 40943397 is 79334904.

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 40943397 - 2² = 40943393 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40943393) 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, 620322 + ... + 620387.

It is an arithmetic number, because the mean of its divisors is an integer number (7444260).

Almost surely, 2^40943397 is an apocalyptic number.

It is an amenable number.

40943397 is a deficient number, since it is larger than the sum of its proper divisors (18610683).

40943397 is a wasteful number, since it uses less digits than its factorization.

40943397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1240723.

The product of its (nonzero) digits is 81648, while the sum is 39.

The square root of 40943397 is about 6398.7027591536. The cubic root of 40943397 is about 344.6629684867.

The spelling of 40943397 in words is "forty million, nine hundred forty-three thousand, three hundred ninety-seven".