1000375040 has 144 divisors (see below), whose sum is σ = 2754984960. Its totient is φ = 340930560.

The previous prime is 1000375027. The next prime is 1000375043. The reversal of 1000375040 is 405730001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000375043) 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, 2786381 + ... + 2786739.

It is an arithmetic number, because the mean of its divisors is an integer number (19131840).

Almost surely, 2^1000375040 is an apocalyptic number.

1000375040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1000375040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1377492480).

1000375040 is an abundant number, since it is smaller than the sum of its proper divisors (1754609920).

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

1000375040 is an equidigital number, since it uses as much as digits as its factorization.

1000375040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 698 (or 684 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 1000375040 is about 31628.7059488687. The cubic root of 1000375040 is about 1000.1249977083.

The spelling of 1000375040 in words is "one billion, three hundred seventy-five thousand, forty".