729481400 has 48 divisors (see below), whose sum is σ = 1728070200. Its totient is φ = 286282880.

The previous prime is 729481397. The next prime is 729481451. The reversal of 729481400 is 4184927.

It is a super-2 number, since 2×729481400² = 1064286225891920000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23810 + ... + 45009.

Almost surely, 2^729481400 is an apocalyptic number.

It is an amenable number.

729481400 is an abundant number, since it is smaller than the sum of its proper divisors (998588800).

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

729481400 is a wasteful number, since it uses less digits than its factorization.

729481400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68888 (or 68879 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 729481400 is about 27008.9133435612. The cubic root of 729481400 is about 900.1980634048.

The spelling of 729481400 in words is "seven hundred twenty-nine million, four hundred eighty-one thousand, four hundred".