72474454 has 8 divisors (see below), whose sum is σ = 117074160. Its totient is φ = 33449736.

The previous prime is 72474443. The next prime is 72474487. The reversal of 72474454 is 45447427.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1393714 + ... + 1393765.

It is an arithmetic number, because the mean of its divisors is an integer number (14634270).

Almost surely, 2^72474454 is an apocalyptic number.

72474454 is a deficient number, since it is larger than the sum of its proper divisors (44599706).

72474454 is a wasteful number, since it uses less digits than its factorization.

72474454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2787494.

The product of its digits is 125440, while the sum is 37.

The square root of 72474454 is about 8513.1929380227. The cubic root of 72474454 is about 416.9285648058.

The spelling of 72474454 in words is "seventy-two million, four hundred seventy-four thousand, four hundred fifty-four".