72285454 has 8 divisors (see below), whose sum is σ = 108894240. Its totient is φ = 35987376.

The previous prime is 72285439. The next prime is 72285497. The reversal of 72285454 is 45458227.

It is a happy number.

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

It is a super-2 number, since 2×72285454² = 10450373719972232, which contains 22 as substring.

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, 77094 + ... + 78025.

It is an arithmetic number, because the mean of its divisors is an integer number (13611780).

Almost surely, 2^72285454 is an apocalyptic number.

72285454 is a deficient number, since it is larger than the sum of its proper divisors (36608786).

72285454 is a wasteful number, since it uses less digits than its factorization.

72285454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155354.

The product of its digits is 89600, while the sum is 37.

The square root of 72285454 is about 8502.0852736255. The cubic root of 72285454 is about 416.5658250541.

The spelling of 72285454 in words is "seventy-two million, two hundred eighty-five thousand, four hundred fifty-four".