1020642342 has 64 divisors (see below), whose sum is σ = 2265822720. Its totient is φ = 305040384.

The previous prime is 1020642341. The next prime is 1020642409. The reversal of 1020642342 is 2432460201.

1020642342 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020642341) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 252328 + ... + 256340.

It is an arithmetic number, because the mean of its divisors is an integer number (35403480).

Almost surely, 2^1020642342 is an apocalyptic number.

1020642342 is an abundant number, since it is smaller than the sum of its proper divisors (1245180378).

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

1020642342 is a wasteful number, since it uses less digits than its factorization.

1020642342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4157.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 1020642342 is about 31947.4935167064. The cubic root of 1020642342 is about 1006.8339711161.

The spelling of 1020642342 in words is "one billion, twenty million, six hundred forty-two thousand, three hundred forty-two".