806402730 has 64 divisors (see below), whose sum is σ = 2221240320. Its totient is φ = 183537984.

The previous prime is 806402713. The next prime is 806402743. The reversal of 806402730 is 37204608.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42157 + ... + 58223.

It is an arithmetic number, because the mean of its divisors is an integer number (34706880).

Almost surely, 2^806402730 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 806402730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1110620160).

806402730 is an abundant number, since it is smaller than the sum of its proper divisors (1414837590).

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

806402730 is a wasteful number, since it uses less digits than its factorization.

806402730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16323.

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

The square root of 806402730 is about 28397.2310269857. The cubic root of 806402730 is about 930.7877589460.

The spelling of 806402730 in words is "eight hundred six million, four hundred two thousand, seven hundred thirty".