40098043 has 2 divisors, whose sum is σ = 40098044. Its totient is φ = 40098042.

The previous prime is 40098029. The next prime is 40098073. The reversal of 40098043 is 34089004.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40098043 - 2⁵ = 40098011 is a prime.

It is equal to p_2439244 and since 40098043 and 2439244 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 (40098073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20049021 + 20049022.

It is an arithmetic number, because the mean of its divisors is an integer number (20049022).

Almost surely, 2^40098043 is an apocalyptic number.

40098043 is a deficient number, since it is larger than the sum of its proper divisors (1).

40098043 is an equidigital number, since it uses as much as digits as its factorization.

40098043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 40098043 is about 6332.3015563064. The cubic root of 40098043 is about 342.2743799733.

The spelling of 40098043 in words is "forty million, ninety-eight thousand, forty-three".