813542622 has 16 divisors (see below), whose sum is σ = 1654663680. Its totient is φ = 266584472.

The previous prime is 813542603. The next prime is 813542687. The reversal of 813542622 is 226245318.

It is a super-3 number, since 3×813542622³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

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, 1148718 + ... + 1149425.

It is an arithmetic number, because the mean of its divisors is an integer number (103416480).

Almost surely, 2^813542622 is an apocalyptic number.

813542622 is an abundant number, since it is smaller than the sum of its proper divisors (841121058).

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

813542622 is a wasteful number, since it uses less digits than its factorization.

813542622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2298207.

The product of its digits is 23040, while the sum is 33.

The square root of 813542622 is about 28522.6685637933. The cubic root of 813542622 is about 933.5267568793.

The spelling of 813542622 in words is "eight hundred thirteen million, five hundred forty-two thousand, six hundred twenty-two".