1020342864 has 40 divisors (see below), whose sum is σ = 2774619040. Its totient is φ = 322213248.

The previous prime is 1020342857. The next prime is 1020342871. The reversal of 1020342864 is 4682430201.

It is an interprime number because it is at equal distance from previous prime (1020342857) and next prime (1020342871).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 558487 + ... + 560310.

It is an arithmetic number, because the mean of its divisors is an integer number (69365476).

Almost surely, 2^1020342864 is an apocalyptic number.

It is an amenable number.

1020342864 is an abundant number, since it is smaller than the sum of its proper divisors (1754276176).

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

1020342864 is a wasteful number, since it uses less digits than its factorization.

1020342864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1118827 (or 1118821 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 1020342864 is about 31942.8061384719. The cubic root of 1020342864 is about 1006.7354860387.

The spelling of 1020342864 in words is "one billion, twenty million, three hundred forty-two thousand, eight hundred sixty-four".