730427810 has 24 divisors (see below), whose sum is σ = 1529427420. Its totient is φ = 250432224.

The previous prime is 730427809. The next prime is 730427837. The reversal of 730427810 is 18724037.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 704955601 + 25472209 = 26551^2 + 5047^2 .

It is a super-2 number, since 2×730427810² = 1067049571242792200, which contains 22 as substring.

It is a Curzon 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, 744845 + ... + 745824.

Almost surely, 2^730427810 is an apocalyptic number.

730427810 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

730427810 is an abundant number, since it is smaller than the sum of its proper divisors (798999610).

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

730427810 is a wasteful number, since it uses less digits than its factorization.

730427810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1490690 (or 1490683 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 730427810 is about 27026.4279918749. The cubic root of 730427810 is about 900.5871929422.

The spelling of 730427810 in words is "seven hundred thirty million, four hundred twenty-seven thousand, eight hundred ten".