40011451 has 4 divisors (see below), whose sum is σ = 40049152. Its totient is φ = 39973752.

The previous prime is 40011437. The next prime is 40011469. The reversal of 40011451 is 15411004.

40011451 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.

It is a cyclic number.

It is not a de Polignac number, because 40011451 - 2⁹ = 40010939 is a prime.

It is a super-2 number, since 2×40011451² = 3201832422250802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40011401) 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, 17211 + ... + 19396.

It is an arithmetic number, because the mean of its divisors is an integer number (10012288).

Almost surely, 2^40011451 is an apocalyptic number.

40011451 is a deficient number, since it is larger than the sum of its proper divisors (37701).

40011451 is a wasteful number, since it uses less digits than its factorization.

40011451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37700.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 40011451 is about 6325.4605365934. The cubic root of 40011451 is about 342.0278211126.

Adding to 40011451 its reverse (15411004), we get a palindrome (55422455).

The spelling of 40011451 in words is "forty million, eleven thousand, four hundred fifty-one".