721040098 has 8 divisors (see below), whose sum is σ = 1116449280. Its totient is φ = 348890340.

The previous prime is 721040093. The next prime is 721040119. The reversal of 721040098 is 890040127.

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

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (721040093) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5814778 + ... + 5814901.

It is an arithmetic number, because the mean of its divisors is an integer number (139556160).

Almost surely, 2^721040098 is an apocalyptic number.

721040098 is a deficient number, since it is larger than the sum of its proper divisors (395409182).

721040098 is a wasteful number, since it uses less digits than its factorization.

721040098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11629712.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 721040098 is about 26852.1898175922. The cubic root of 721040098 is about 896.7123250030.

The spelling of 721040098 in words is "seven hundred twenty-one million, forty thousand, ninety-eight".