40890719 has 8 divisors (see below), whose sum is σ = 41882400. Its totient is φ = 39907296.

The previous prime is 40890713. The next prime is 40890737. The reversal of 40890719 is 91709804.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40890719 is a prime.

It is a super-2 number, since 2×40890719² = 3344101800673922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40890713) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8609 + ... + 12485.

It is an arithmetic number, because the mean of its divisors is an integer number (5235300).

Almost surely, 2^40890719 is an apocalyptic number.

40890719 is a deficient number, since it is larger than the sum of its proper divisors (991681).

40890719 is a wasteful number, since it uses less digits than its factorization.

40890719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4129.

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 40890719 is about 6394.5851311872. The cubic root of 40890719 is about 344.5150899572.

The spelling of 40890719 in words is "forty million, eight hundred ninety thousand, seven hundred nineteen".