40444519 has 4 divisors (see below), whose sum is σ = 40473000. Its totient is φ = 40416040.

The previous prime is 40444517. The next prime is 40444543. The reversal of 40444519 is 91544404.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40444519 - 2¹ = 40444517 is a prime.

It is a super-2 number, since 2×40444519² = 3271518234282722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40444517) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11992 + ... + 14989.

It is an arithmetic number, because the mean of its divisors is an integer number (10118250).

Almost surely, 2^40444519 is an apocalyptic number.

40444519 is a deficient number, since it is larger than the sum of its proper divisors (28481).

40444519 is a wasteful number, since it uses less digits than its factorization.

40444519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28480.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 40444519 is about 6359.6005377696. The cubic root of 40444519 is about 343.2573865592.

The spelling of 40444519 in words is "forty million, four hundred forty-four thousand, five hundred nineteen".