813400734 has 32 divisors (see below), whose sum is σ = 1725438240. Its totient is φ = 254748672.

The previous prime is 813400673. The next prime is 813400739. The reversal of 813400734 is 437004318.

813400734 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (813400739) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56022 + ... + 69030.

It is an arithmetic number, because the mean of its divisors is an integer number (53919945).

Almost surely, 2^813400734 is an apocalyptic number.

813400734 is an abundant number, since it is smaller than the sum of its proper divisors (912037506).

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

813400734 is a wasteful number, since it uses less digits than its factorization.

813400734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13644.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 813400734 is about 28520.1811705326. The cubic root of 813400734 is about 933.4724823431.

The spelling of 813400734 in words is "eight hundred thirteen million, four hundred thousand, seven hundred thirty-four".