830339640 has 128 divisors (see below), whose sum is σ = 2980756800. Its totient is φ = 204387840.

The previous prime is 830339621. The next prime is 830339641. The reversal of 830339640 is 46933038.

830339640 is a `hidden beast` number, since 8 + 3 + 0 + 3 + 3 + 9 + 640 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 830339595 and 830339604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (830339641) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15531 + ... + 43610.

Almost surely, 2^830339640 is an apocalyptic number.

It is an amenable number.

830339640 is an abundant number, since it is smaller than the sum of its proper divisors (2150417160).

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

830339640 is a wasteful number, since it uses less digits than its factorization.

830339640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59174 (or 59164 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 36.

The square root of 830339640 is about 28815.6145171329. The cubic root of 830339640 is about 939.9078074665.

The spelling of 830339640 in words is "eight hundred thirty million, three hundred thirty-nine thousand, six hundred forty".