721182468 has 48 divisors (see below), whose sum is σ = 1793792000. Its totient is φ = 224853408.

The previous prime is 721182467. The next prime is 721182479. The reversal of 721182468 is 864281127.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (721182463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2008 + ... + 38031.

Almost surely, 2^721182468 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 721182468, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (896896000).

721182468 is an abundant number, since it is smaller than the sum of its proper divisors (1072609532).

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

721182468 is a wasteful number, since it uses less digits than its factorization.

721182468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40144 (or 40142 counting only the distinct ones).

The product of its digits is 43008, while the sum is 39.

The square root of 721182468 is about 26854.8406809648. The cubic root of 721182468 is about 896.7713399974.

The spelling of 721182468 in words is "seven hundred twenty-one million, one hundred eighty-two thousand, four hundred sixty-eight".