1001941640 has 64 divisors (see below), whose sum is σ = 2688456960. Its totient is φ = 328584960.

The previous prime is 1001941637. The next prime is 1001941643. The reversal of 1001941640 is 461491001.

1001941640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1001941637) and next prime (1001941643).

It is not an unprimeable number, because it can be changed into a prime (1001941643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71351 + ... + 84230.

It is an arithmetic number, because the mean of its divisors is an integer number (42007140).

Almost surely, 2^1001941640 is an apocalyptic number.

1001941640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1001941640 is an abundant number, since it is smaller than the sum of its proper divisors (1686515320).

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

1001941640 is a wasteful number, since it uses less digits than its factorization.

1001941640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155622 (or 155618 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 1001941640 is about 31653.4617380153. The cubic root of 1001941640 is about 1000.6467948995.

The spelling of 1001941640 in words is "one billion, one million, nine hundred forty-one thousand, six hundred forty".