1000641042 has 24 divisors (see below), whose sum is σ = 2282164560. Its totient is φ = 315991800.

The previous prime is 1000641017. The next prime is 1000641067. The reversal of 1000641042 is 2401460001.

It is an interprime number because it is at equal distance from previous prime (1000641017) and next prime (1000641067).

It is a Harshad number since it is a multiple of its sum of digits (18).

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 11 ways as a sum of consecutive naturals, for example, 1462584 + ... + 1463267.

It is an arithmetic number, because the mean of its divisors is an integer number (95090190).

Almost surely, 2^1000641042 is an apocalyptic number.

1000641042 is an abundant number, since it is smaller than the sum of its proper divisors (1281523518).

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

1000641042 is a wasteful number, since it uses less digits than its factorization.

1000641042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2925878 (or 2925875 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1000641042 is about 31632.9107418208. The cubic root of 1000641042 is about 1000.2136350235.

The spelling of 1000641042 in words is "one billion, six hundred forty-one thousand, forty-two".