40219499 has 4 divisors (see below), whose sum is σ = 40395360. Its totient is φ = 40043640.

The previous prime is 40219427. The next prime is 40219507. The reversal of 40219499 is 99491204.

It is a happy number.

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 40219499 - 2⁸ = 40219243 is a prime.

It is a super-2 number, since 2×40219499² = 3235216199622002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40219799) 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, 87587 + ... + 88044.

It is an arithmetic number, because the mean of its divisors is an integer number (10098840).

Almost surely, 2^40219499 is an apocalyptic number.

40219499 is a deficient number, since it is larger than the sum of its proper divisors (175861).

40219499 is a wasteful number, since it uses less digits than its factorization.

40219499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175860.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 40219499 is about 6341.8844991059. The cubic root of 40219499 is about 342.6196119071.

The spelling of 40219499 in words is "forty million, two hundred nineteen thousand, four hundred ninety-nine".