1022404032 has 252 divisors, whose sum is σ = 3299292360. Its totient is φ = 313777152.

The previous prime is 1022404013. The next prime is 1022404039. The reversal of 1022404032 is 2304042201.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1022403996 and 1022404014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022404039) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2628094 + ... + 2628482.

It is an arithmetic number, because the mean of its divisors is an integer number (13092430).

Almost surely, 2^1022404032 is an apocalyptic number.

1022404032 is a gapful number since it is divisible by the number (12) 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 1022404032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1649646180).

1022404032 is an abundant number, since it is smaller than the sum of its proper divisors (2276888328).

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

1022404032 is an equidigital number, since it uses as much as digits as its factorization.

1022404032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442 (or 407 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 1022404032 is about 31975.0532759525. The cubic root of 1022404032 is about 1007.4129234490.

Adding to 1022404032 its reverse (2304042201), we get a palindrome (3326446233).

The spelling of 1022404032 in words is "one billion, twenty-two million, four hundred four thousand, thirty-two".