40368451 has 2 divisors, whose sum is σ = 40368452. Its totient is φ = 40368450.

The previous prime is 40368413. The next prime is 40368463. The reversal of 40368451 is 15486304.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40368451 - 2⁹ = 40367939 is a prime.

It is a super-2 number, since 2×40368451² = 3259223672278802, which contains 22 as substring.

It is a Chen prime.

It is equal to p_2454754 and since 40368451 and 2454754 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (40368401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20184225 + 20184226.

It is an arithmetic number, because the mean of its divisors is an integer number (20184226).

Almost surely, 2^40368451 is an apocalyptic number.

40368451 is a deficient number, since it is larger than the sum of its proper divisors (1).

40368451 is an equidigital number, since it uses as much as digits as its factorization.

40368451 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 40368451 is about 6353.6171587530. The cubic root of 40368451 is about 343.0420521502.

The spelling of 40368451 in words is "forty million, three hundred sixty-eight thousand, four hundred fifty-one".