40389103 has 2 divisors, whose sum is σ = 40389104. Its totient is φ = 40389102.

The previous prime is 40389101. The next prime is 40389109. The reversal of 40389103 is 30198304.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40389103 - 2¹ = 40389101 is a prime.

It is a super-2 number, since 2×40389103² = 3262559282289218, which contains 22 as substring.

Together with 40389101, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40389101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20194551 + 20194552.

It is an arithmetic number, because the mean of its divisors is an integer number (20194552).

Almost surely, 2^40389103 is an apocalyptic number.

40389103 is a deficient number, since it is larger than the sum of its proper divisors (1).

40389103 is an equidigital number, since it uses as much as digits as its factorization.

40389103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 40389103 is about 6355.2421669044. The cubic root of 40389103 is about 343.1005408670.

The spelling of 40389103 in words is "forty million, three hundred eighty-nine thousand, one hundred three".