1020427844 has 24 divisors (see below), whose sum is σ = 1908845568. Its totient is φ = 476125760.

The previous prime is 1020427831. The next prime is 1020427853. The reversal of 1020427844 is 4487240201.

It is a self number, because there is not a number n which added to its sum of digits gives 1020427844.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131492 + ... + 139035.

It is an arithmetic number, because the mean of its divisors is an integer number (79535232).

Almost surely, 2^1020427844 is an apocalyptic number.

It is an amenable number.

1020427844 is a deficient number, since it is larger than the sum of its proper divisors (888417724).

1020427844 is a wasteful number, since it uses less digits than its factorization.

1020427844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270595 (or 270593 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 32.

The square root of 1020427844 is about 31944.1363007360. The cubic root of 1020427844 is about 1006.7634341627.

The spelling of 1020427844 in words is "one billion, twenty million, four hundred twenty-seven thousand, eight hundred forty-four".