40196279 has 4 divisors (see below), whose sum is σ = 42560784. Its totient is φ = 37831776.

The previous prime is 40196263. The next prime is 40196281. The reversal of 40196279 is 97269104.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40196279 - 2⁴ = 40196263 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 (40196879) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1182227 + ... + 1182260.

It is an arithmetic number, because the mean of its divisors is an integer number (10640196).

Almost surely, 2^40196279 is an apocalyptic number.

40196279 is a deficient number, since it is larger than the sum of its proper divisors (2364505).

40196279 is a wasteful number, since it uses less digits than its factorization.

40196279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2364504.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 40196279 is about 6340.0535486698. The cubic root of 40196279 is about 342.5536641364.

The spelling of 40196279 in words is "forty million, one hundred ninety-six thousand, two hundred seventy-nine".