1022396540 has 48 divisors (see below), whose sum is σ = 2365009920. Its totient is φ = 368162880.

The previous prime is 1022396527. The next prime is 1022396579. The reversal of 1022396540 is 456932201.

It is a happy number.

1022396540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 1022396497 and 1022396506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101 + ... + 45219.

It is an arithmetic number, because the mean of its divisors is an integer number (49271040).

Almost surely, 2^1022396540 is an apocalyptic number.

1022396540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1022396540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1182504960).

1022396540 is an abundant number, since it is smaller than the sum of its proper divisors (1342613380).

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

1022396540 is a wasteful number, since it uses less digits than its factorization.

1022396540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45242 (or 45240 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 1022396540 is about 31974.9361219065. The cubic root of 1022396540 is about 1007.4104627271.

The spelling of 1022396540 in words is "one billion, twenty-two million, three hundred ninety-six thousand, five hundred forty".