730436 has 24 divisors (see below), whose sum is σ = 1538880. Its totient is φ = 296352.

The previous prime is 730421. The next prime is 730447. The reversal of 730436 is 634037.

730436 = 84² + 85² + ... + 140².

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 730436.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155 + ... + 1218.

It is an arithmetic number, because the mean of its divisors is an integer number (64120).

2⁷³⁰⁴³⁶ is an apocalyptic number.

730436 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

730436 is an abundant number, since it is smaller than the sum of its proper divisors (808444).

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

730436 is a wasteful number, since it uses less digits than its factorization.

730436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1403 (or 1401 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 23.

The square root of 730436 is about 854.6554861463. The cubic root of 730436 is about 90.0590558906.

The spelling of 730436 in words is "seven hundred thirty thousand, four hundred thirty-six".