40344819 has 8 divisors (see below), whose sum is σ = 54808272. Its totient is φ = 26388960.

The previous prime is 40344803. The next prime is 40344823. The reversal of 40344819 is 91844304.

It is a happy number.

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

It is not a de Polignac number, because 40344819 - 2⁴ = 40344803 is a prime.

It is a super-2 number, since 2×40344819² = 3255408840285522, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 40344819.

It is not an unprimeable number, because it can be changed into a prime (40344839) 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, 126712 + ... + 127029.

It is an arithmetic number, because the mean of its divisors is an integer number (6851034).

Almost surely, 2^40344819 is an apocalyptic number.

40344819 is a deficient number, since it is larger than the sum of its proper divisors (14463453).

40344819 is a wasteful number, since it uses less digits than its factorization.

40344819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253797.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 40344819 is about 6351.7571584562. The cubic root of 40344819 is about 342.9750992698.

The spelling of 40344819 in words is "forty million, three hundred forty-four thousand, eight hundred nineteen".