40654451 has 2 divisors, whose sum is σ = 40654452. Its totient is φ = 40654450.

The previous prime is 40654441. The next prime is 40654469. The reversal of 40654451 is 15445604.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40654451 - 2¹⁴ = 40638067 is a prime.

It is a super-2 number, since 2×40654451² = 3305568772222802, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40654441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20327225 + 20327226.

It is an arithmetic number, because the mean of its divisors is an integer number (20327226).

Almost surely, 2^40654451 is an apocalyptic number.

40654451 is a deficient number, since it is larger than the sum of its proper divisors (1).

40654451 is an equidigital number, since it uses as much as digits as its factorization.

40654451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 40654451 is about 6376.0842999446. The cubic root of 40654451 is about 343.8502677860.

The spelling of 40654451 in words is "forty million, six hundred fifty-four thousand, four hundred fifty-one".