40903019 has 16 divisors (see below), whose sum is σ = 43980288. Its totient is φ = 37975392.

The previous prime is 40902973. The next prime is 40903061. The reversal of 40903019 is 91030904.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40903019 is a prime.

It is a super-2 number, since 2×40903019² = 3346113926628722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40903099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74504 + ... + 75050.

It is an arithmetic number, because the mean of its divisors is an integer number (2748768).

Almost surely, 2^40903019 is an apocalyptic number.

40903019 is a deficient number, since it is larger than the sum of its proper divisors (3077269).

40903019 is a wasteful number, since it uses less digits than its factorization.

40903019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 674.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 40903019 is about 6395.5468100859. The cubic root of 40903019 is about 344.5496300753.

The spelling of 40903019 in words is "forty million, nine hundred three thousand, nineteen".