822435540 has 48 divisors (see below), whose sum is σ = 2305013760. Its totient is φ = 219107200.

The previous prime is 822435527. The next prime is 822435547. The reversal of 822435540 is 45534228.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (822435547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63106 + ... + 75014.

It is an arithmetic number, because the mean of its divisors is an integer number (48021120).

Almost surely, 2^822435540 is an apocalyptic number.

It is an amenable number.

822435540 is an abundant number, since it is smaller than the sum of its proper divisors (1482578220).

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

822435540 is a wasteful number, since it uses less digits than its factorization.

822435540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13072 (or 13070 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 33.

The square root of 822435540 is about 28678.1369687781. The cubic root of 822435540 is about 936.9159298840.

Adding to 822435540 its reverse (45534228), we get a palindrome (867969768).

The spelling of 822435540 in words is "eight hundred twenty-two million, four hundred thirty-five thousand, five hundred forty".