72494454 has 16 divisors (see below), whose sum is σ = 145107648. Its totient is φ = 24145032.

The previous prime is 72494453. The next prime is 72494491. The reversal of 72494454 is 45449427.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72494453) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 4329 + ... + 12795.

It is an arithmetic number, because the mean of its divisors is an integer number (9069228).

Almost surely, 2^72494454 is an apocalyptic number.

72494454 is an abundant number, since it is smaller than the sum of its proper divisors (72613194).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72494454 is a wasteful number, since it uses less digits than its factorization.

72494454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9899.

The product of its digits is 161280, while the sum is 39.

The square root of 72494454 is about 8514.3675044010. The cubic root of 72494454 is about 416.9669130509.

The spelling of 72494454 in words is "seventy-two million, four hundred ninety-four thousand, four hundred fifty-four".