1020032442 has 96 divisors (see below), whose sum is σ = 2733232320. Its totient is φ = 270293760.

The previous prime is 1020032407. The next prime is 1020032449. The reversal of 1020032442 is 2442300201.

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

It is not an unprimeable number, because it can be changed into a prime (1020032449) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 38478 + ... + 59334.

It is an arithmetic number, because the mean of its divisors is an integer number (28471170).

Almost surely, 2^1020032442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1020032442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1366616160).

1020032442 is an abundant number, since it is smaller than the sum of its proper divisors (1713199878).

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

1020032442 is a wasteful number, since it uses less digits than its factorization.

1020032442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20908 (or 20905 counting only the distinct ones).

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

The square root of 1020032442 is about 31937.9467405154. The cubic root of 1020032442 is about 1006.6333816215.

Adding to 1020032442 its reverse (2442300201), we get a palindrome (3462332643).

The spelling of 1020032442 in words is "one billion, twenty million, thirty-two thousand, four hundred forty-two".