72494326 has 4 divisors (see below), whose sum is σ = 108741492. Its totient is φ = 36247162.

The previous prime is 72494309. The next prime is 72494339. The reversal of 72494326 is 62349427.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 62349427 = 7 ⋅8907061.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18123580 + ... + 18123583.

It is an arithmetic number, because the mean of its divisors is an integer number (27185373).

Almost surely, 2^72494326 is an apocalyptic number.

72494326 is a deficient number, since it is larger than the sum of its proper divisors (36247166).

72494326 is a wasteful number, since it uses less digits than its factorization.

72494326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36247165.

The product of its digits is 72576, while the sum is 37.

The square root of 72494326 is about 8514.3599876914. The cubic root of 72494326 is about 416.9666676445.

The spelling of 72494326 in words is "seventy-two million, four hundred ninety-four thousand, three hundred twenty-six".