40104451 has 2 divisors, whose sum is σ = 40104452. Its totient is φ = 40104450.

The previous prime is 40104443. The next prime is 40104457. The reversal of 40104451 is 15440104.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40104451 - 2³ = 40104443 is a prime.

It is a super-2 number, since 2×40104451² = 3216733980022802, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40104457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20052225 + 20052226.

It is an arithmetic number, because the mean of its divisors is an integer number (20052226).

Almost surely, 2^40104451 is an apocalyptic number.

40104451 is a deficient number, since it is larger than the sum of its proper divisors (1).

40104451 is an equidigital number, since it uses as much as digits as its factorization.

40104451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 40104451 is about 6332.8075132598. The cubic root of 40104451 is about 342.2926117641.

Adding to 40104451 its reverse (15440104), we get a palindrome (55544555).

The spelling of 40104451 in words is "forty million, one hundred four thousand, four hundred fifty-one".