40497379 has 16 divisors (see below), whose sum is σ = 46305280. Its totient is φ = 35108640.

The previous prime is 40497367. The next prime is 40497389. The reversal of 40497379 is 97379404.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 40497379 - 2⁷ = 40497251 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40497389) 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, 30724 + ... + 32014.

It is an arithmetic number, because the mean of its divisors is an integer number (2894080).

Almost surely, 2^40497379 is an apocalyptic number.

40497379 is a deficient number, since it is larger than the sum of its proper divisors (5807901).

40497379 is a wasteful number, since it uses less digits than its factorization.

40497379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1450.

The product of its (nonzero) digits is 190512, while the sum is 43.

The square root of 40497379 is about 6363.7551021390. The cubic root of 40497379 is about 343.4068644678.

The spelling of 40497379 in words is "forty million, four hundred ninety-seven thousand, three hundred seventy-nine".