40993197 has 16 divisors (see below), whose sum is σ = 62556672. Its totient is φ = 23390640.

The previous prime is 40993181. The next prime is 40993207. The reversal of 40993197 is 79139904.

It is not a de Polignac number, because 40993197 - 2⁴ = 40993181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40993157) 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, 23758 + ... + 25424.

It is an arithmetic number, because the mean of its divisors is an integer number (3909792).

Almost surely, 2^40993197 is an apocalyptic number.

It is an amenable number.

40993197 is a deficient number, since it is larger than the sum of its proper divisors (21563475).

40993197 is a wasteful number, since it uses less digits than its factorization.

40993197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2848.

The product of its (nonzero) digits is 61236, while the sum is 42.

The square root of 40993197 is about 6402.5929903438. The cubic root of 40993197 is about 344.8026512582.

The spelling of 40993197 in words is "forty million, nine hundred ninety-three thousand, one hundred ninety-seven".