729510420 has 24 divisors (see below), whose sum is σ = 2042629344. Its totient is φ = 194536096.

The previous prime is 729510403. The next prime is 729510421. The reversal of 729510420 is 24015927.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (729510421) 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, 6079194 + ... + 6079313.

It is an arithmetic number, because the mean of its divisors is an integer number (85109556).

Almost surely, 2^729510420 is an apocalyptic number.

It is an amenable number.

729510420 is an abundant number, since it is smaller than the sum of its proper divisors (1313118924).

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

729510420 is a wasteful number, since it uses less digits than its factorization.

729510420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12158519 (or 12158517 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 729510420 is about 27009.4505682733. The cubic root of 729510420 is about 900.2100003787.

The spelling of 729510420 in words is "seven hundred twenty-nine million, five hundred ten thousand, four hundred twenty".