823414434 has 16 divisors (see below), whose sum is σ = 1662221088. Its totient is φ = 271906112.

The previous prime is 823414387. The next prime is 823414447. The reversal of 823414434 is 434414328.

It is a super-2 number, since 2×823414434² = 1356022660239080712, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 823414395 and 823414404.

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, 640647 + ... + 641930.

It is an arithmetic number, because the mean of its divisors is an integer number (103888818).

Almost surely, 2^823414434 is an apocalyptic number.

823414434 is an abundant number, since it is smaller than the sum of its proper divisors (838806654).

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

823414434 is a wasteful number, since it uses less digits than its factorization.

823414434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1282689.

The product of its digits is 36864, while the sum is 33.

The square root of 823414434 is about 28695.1987970113. The cubic root of 823414434 is about 937.2875001393.

The spelling of 823414434 in words is "eight hundred twenty-three million, four hundred fourteen thousand, four hundred thirty-four".