72443074 has 16 divisors (see below), whose sum is σ = 121067136. Its totient is φ = 32227600.

The previous prime is 72443071. The next prime is 72443101. The reversal of 72443074 is 47034427.

It is a super-3 number, since 3×72443074³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (72443071) 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, 33997 + ... + 36064.

It is an arithmetic number, because the mean of its divisors is an integer number (7566696).

Almost surely, 2^72443074 is an apocalyptic number.

72443074 is a deficient number, since it is larger than the sum of its proper divisors (48624062).

72443074 is a wasteful number, since it uses less digits than its factorization.

72443074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70121.

The product of its (nonzero) digits is 18816, while the sum is 31.

The square root of 72443074 is about 8511.3497167018. The cubic root of 72443074 is about 416.8683821881.

The spelling of 72443074 in words is "seventy-two million, four hundred forty-three thousand, seventy-four".