720732149 has 8 divisors (see below), whose sum is σ = 759360000. Its totient is φ = 682173792.

The previous prime is 720732121. The next prime is 720732161. The reversal of 720732149 is 941237027.

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

It is a cyclic number.

It is not a de Polignac number, because 720732149 - 2²⁸ = 452296693 is a prime.

It is a super-3 number, since 3×720732149³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720732049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4652 + ... + 38250.

It is an arithmetic number, because the mean of its divisors is an integer number (94920000).

Almost surely, 2^720732149 is an apocalyptic number.

It is an amenable number.

720732149 is a deficient number, since it is larger than the sum of its proper divisors (38627851).

720732149 is a wasteful number, since it uses less digits than its factorization.

720732149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34747.

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 720732149 is about 26846.4550546250. The cubic root of 720732149 is about 896.5846478755.

The spelling of 720732149 in words is "seven hundred twenty million, seven hundred thirty-two thousand, one hundred forty-nine".