822145932 has 18 divisors (see below), whose sum is σ = 2078202308. Its totient is φ = 274048632.

The previous prime is 822145873. The next prime is 822145963. The reversal of 822145932 is 239541228.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 22837387 = 822145932 / (8 + 2 + 2 + 1 + 4 + 5 + 9 + 3 + 2).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11418658 + ... + 11418729.

Almost surely, 2^822145932 is an apocalyptic number.

It is an amenable number.

822145932 is an abundant number, since it is smaller than the sum of its proper divisors (1256056376).

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

822145932 is a wasteful number, since it uses less digits than its factorization.

822145932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22837397 (or 22837392 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 822145932 is about 28673.0872422207. The cubic root of 822145932 is about 936.8059434714.

The spelling of 822145932 in words is "eight hundred twenty-two million, one hundred forty-five thousand, nine hundred thirty-two".