40244497 has 4 divisors (see below), whose sum is σ = 40289776. Its totient is φ = 40199220.

The previous prime is 40244483. The next prime is 40244507. The reversal of 40244497 is 79444204.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40244497 - 2¹⁵ = 40211729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40244297) 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, 21279 + ... + 23092.

It is an arithmetic number, because the mean of its divisors is an integer number (10072444).

Almost surely, 2^40244497 is an apocalyptic number.

It is an amenable number.

40244497 is a deficient number, since it is larger than the sum of its proper divisors (45279).

40244497 is an equidigital number, since it uses as much as digits as its factorization.

40244497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45278.

The product of its (nonzero) digits is 32256, while the sum is 34.

The square root of 40244497 is about 6343.8550582434. The cubic root of 40244497 is about 342.6905810591.

The spelling of 40244497 in words is "forty million, two hundred forty-four thousand, four hundred ninety-seven".