40324651 has 2 divisors, whose sum is σ = 40324652. Its totient is φ = 40324650.

The previous prime is 40324621. The next prime is 40324723. The reversal of 40324651 is 15642304.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40324651 - 2¹¹ = 40322603 is a prime.

It is not a weakly prime, because it can be changed into another prime (40324601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20162325 + 20162326.

It is an arithmetic number, because the mean of its divisors is an integer number (20162326).

Almost surely, 2^40324651 is an apocalyptic number.

40324651 is a deficient number, since it is larger than the sum of its proper divisors (1).

40324651 is an equidigital number, since it uses as much as digits as its factorization.

40324651 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 40324651 is about 6350.1693678200. The cubic root of 40324651 is about 342.9179397229.

Adding to 40324651 its reverse (15642304), we get a palindrome (55966955).

The spelling of 40324651 in words is "forty million, three hundred twenty-four thousand, six hundred fifty-one".