72304894 has 32 divisors (see below), whose sum is σ = 115468416. Its totient is φ = 33914880.

The previous prime is 72304891. The next prime is 72304907. The reversal of 72304894 is 49840327.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72304891) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 281214 + ... + 281470.

It is an arithmetic number, because the mean of its divisors is an integer number (3608388).

Almost surely, 2^72304894 is an apocalyptic number.

72304894 is a deficient number, since it is larger than the sum of its proper divisors (43163522).

72304894 is a wasteful number, since it uses less digits than its factorization.

72304894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 72304894 is about 8503.2284457140. The cubic root of 72304894 is about 416.6031645802.

The spelling of 72304894 in words is "seventy-two million, three hundred four thousand, eight hundred ninety-four".