1022492520 has 384 divisors, whose sum is σ = 3962649600. Its totient is φ = 223838208.

The previous prime is 1022492519. The next prime is 1022492533. The reversal of 1022492520 is 252942201.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 10541112 + ... + 10541208.

It is an arithmetic number, because the mean of its divisors is an integer number (10319400).

Almost surely, 2^1022492520 is an apocalyptic number.

1022492520 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 1022492520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1981324800).

1022492520 is an abundant number, since it is smaller than the sum of its proper divisors (2940157080).

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

1022492520 is a wasteful number, since it uses less digits than its factorization.

1022492520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257 (or 250 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 1022492520 is about 31976.4369497291. The cubic root of 1022492520 is about 1007.4419861223.

The spelling of 1022492520 in words is "one billion, twenty-two million, four hundred ninety-two thousand, five hundred twenty".