730024400 has 60 divisors (see below), whose sum is σ = 2004446112. Its totient is φ = 250293120.

The previous prime is 730024381. The next prime is 730024423. The reversal of 730024400 is 4420037.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 127562 + ... + 133161.

Almost surely, 2^730024400 is an apocalyptic number.

730024400 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

730024400 is an abundant number, since it is smaller than the sum of its proper divisors (1274421712).

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

730024400 is a wasteful number, since it uses less digits than its factorization.

730024400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260748 (or 260737 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 730024400 is about 27018.9637106977. The cubic root of 730024400 is about 900.4213664778.

Adding to 730024400 its reverse (4420037), we get a palindrome (734444437).

The spelling of 730024400 in words is "seven hundred thirty million, twenty-four thousand, four hundred".