72341446 has 4 divisors (see below), whose sum is σ = 108512172. Its totient is φ = 36170722.

The previous prime is 72341429. The next prime is 72341453. The reversal of 72341446 is 64414327.

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

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18085360 + ... + 18085363.

It is an arithmetic number, because the mean of its divisors is an integer number (27128043).

Almost surely, 2^72341446 is an apocalyptic number.

72341446 is a deficient number, since it is larger than the sum of its proper divisors (36170726).

72341446 is a wasteful number, since it uses less digits than its factorization.

72341446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36170725.

The product of its digits is 16128, while the sum is 31.

The square root of 72341446 is about 8505.3774754563. The cubic root of 72341446 is about 416.6733539904.

The spelling of 72341446 in words is "seventy-two million, three hundred forty-one thousand, four hundred forty-six".