40281497 has 4 divisors (see below), whose sum is σ = 41218320. Its totient is φ = 39344676.

The previous prime is 40281469. The next prime is 40281503. The reversal of 40281497 is 79418204.

40281497 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 40281497 - 2⁶ = 40281433 is a prime.

It is a super-2 number, since 2×40281497² = 3245198001122018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40281427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 468347 + ... + 468432.

It is an arithmetic number, because the mean of its divisors is an integer number (10304580).

Almost surely, 2^40281497 is an apocalyptic number.

It is an amenable number.

40281497 is a deficient number, since it is larger than the sum of its proper divisors (936823).

40281497 is an equidigital number, since it uses as much as digits as its factorization.

40281497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 936822.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 40281497 is about 6346.7705961379. The cubic root of 40281497 is about 342.7955698870.

The spelling of 40281497 in words is "forty million, two hundred eighty-one thousand, four hundred ninety-seven".