1000743020 has 24 divisors (see below), whose sum is σ = 2174029200. Its totient is φ = 386493632.

The previous prime is 1000743019. The next prime is 1000743059. The reversal of 1000743020 is 203470001.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1000743020.

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, 862130 + ... + 863289.

It is an arithmetic number, because the mean of its divisors is an integer number (90584550).

Almost surely, 2^1000743020 is an apocalyptic number.

1000743020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1000743020 is an abundant number, since it is smaller than the sum of its proper divisors (1173286180).

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

1000743020 is a wasteful number, since it uses less digits than its factorization.

1000743020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1725457 (or 1725455 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 1000743020 is about 31634.5225979467. The cubic root of 1000743020 is about 1000.2476120166.

The spelling of 1000743020 in words is "one billion, seven hundred forty-three thousand, twenty".