1021942132 has 24 divisors (see below), whose sum is σ = 1883679840. Its totient is φ = 483780960.

The previous prime is 1021942099. The next prime is 1021942133. The reversal of 1021942132 is 2312491201.

It is a junction number, because it is equal to n+sod(n) for n = 1021942097 and 1021942106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021942133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167007 + ... + 173017.

It is an arithmetic number, because the mean of its divisors is an integer number (78486660).

Almost surely, 2^1021942132 is an apocalyptic number.

It is an amenable number.

1021942132 is a deficient number, since it is larger than the sum of its proper divisors (861737708).

1021942132 is a wasteful number, since it uses less digits than its factorization.

1021942132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8271 (or 8269 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 1021942132 is about 31967.8296416882. The cubic root of 1021942132 is about 1007.2611914830.

The spelling of 1021942132 in words is "one billion, twenty-one million, nine hundred forty-two thousand, one hundred thirty-two".