72454 has 8 divisors (see below), whose sum is σ = 115128. Its totient is φ = 34080.

The previous prime is 72431. The next prime is 72461. The reversal of 72454 is 45427.

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 pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1032 + ... + 1099.

It is an arithmetic number, because the mean of its divisors is an integer number (14391).

2⁷²⁴⁵⁴ is an apocalyptic number.

72454 is a deficient number, since it is larger than the sum of its proper divisors (42674).

72454 is a wasteful number, since it uses less digits than its factorization.

72454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2150.

The product of its digits is 1120, while the sum is 22.

The square root of 72454 is about 269.1728069475. The cubic root of 72454 is about 41.6889338758.

The spelling of 72454 in words is "seventy-two thousand, four hundred fifty-four".