40798427 has 2 divisors, whose sum is σ = 40798428. Its totient is φ = 40798426.

The previous prime is 40798399. The next prime is 40798469. The reversal of 40798427 is 72489704.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40798427 - 2⁶ = 40798363 is a prime.

It is not a weakly prime, because it can be changed into another prime (40798477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20399213 + 20399214.

It is an arithmetic number, because the mean of its divisors is an integer number (20399214).

Almost surely, 2^40798427 is an apocalyptic number.

40798427 is a deficient number, since it is larger than the sum of its proper divisors (1).

40798427 is an equidigital number, since it uses as much as digits as its factorization.

40798427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112896, while the sum is 41.

The square root of 40798427 is about 6387.3646365305. The cubic root of 40798427 is about 344.2556998958.

The spelling of 40798427 in words is "forty million, seven hundred ninety-eight thousand, four hundred twenty-seven".