720034491 has 8 divisors (see below), whose sum is σ = 1047322944. Its totient is φ = 436384520.

The previous prime is 720034487. The next prime is 720034493. The reversal of 720034491 is 194430027.

It is a happy number.

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

It is not a de Polignac number, because 720034491 - 2² = 720034487 is a prime.

It is not an unprimeable number, because it can be changed into a prime (720034493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10909581 + ... + 10909646.

It is an arithmetic number, because the mean of its divisors is an integer number (130915368).

Almost surely, 2^720034491 is an apocalyptic number.

720034491 is a deficient number, since it is larger than the sum of its proper divisors (327288453).

720034491 is a wasteful number, since it uses less digits than its factorization.

720034491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21819241.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 720034491 is about 26833.4584241391. The cubic root of 720034491 is about 896.2952609469.

The spelling of 720034491 in words is "seven hundred twenty million, thirty-four thousand, four hundred ninety-one".