724074819 has 64 divisors (see below), whose sum is σ = 1131594240. Its totient is φ = 408084480.

The previous prime is 724074811. The next prime is 724074881. The reversal of 724074819 is 918470427.

It is a happy number.

It is not a de Polignac number, because 724074819 - 2³ = 724074811 is a prime.

It is a super-2 number, since 2×724074819² = 1048568687019765522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (724074811) 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 63 ways as a sum of consecutive naturals, for example, 3751587 + ... + 3751779.

It is an arithmetic number, because the mean of its divisors is an integer number (17681160).

Almost surely, 2^724074819 is an apocalyptic number.

724074819 is a deficient number, since it is larger than the sum of its proper divisors (407519421).

724074819 is a wasteful number, since it uses less digits than its factorization.

724074819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372.

The product of its (nonzero) digits is 112896, while the sum is 42.

The square root of 724074819 is about 26908.6383713483. The cubic root of 724074819 is about 897.9685948743.

The spelling of 724074819 in words is "seven hundred twenty-four million, seventy-four thousand, eight hundred nineteen".