1000331040 has 48 divisors (see below), whose sum is σ = 3151044288. Its totient is φ = 266754816.

The previous prime is 1000331029. The next prime is 1000331053. The reversal of 1000331040 is 401330001.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (12).

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, 1041532 + ... + 1042491.

It is an arithmetic number, because the mean of its divisors is an integer number (65646756).

Almost surely, 2^1000331040 is an apocalyptic number.

1000331040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1000331040 is an abundant number, since it is smaller than the sum of its proper divisors (2150713248).

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

1000331040 is a wasteful number, since it uses less digits than its factorization.

1000331040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2084041 (or 2084033 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 1000331040 is about 31628.0103705560. The cubic root of 1000331040 is about 1000.1103344925.

Adding to 1000331040 its reverse (401330001), we get a palindrome (1401661041).

The spelling of 1000331040 in words is "one billion, three hundred thirty-one thousand, forty".