1000030640 has 40 divisors (see below), whose sum is σ = 2657225760. Its totient is φ = 342867456.

The previous prime is 1000030621. The next prime is 1000030649. The reversal of 1000030640 is 460300001.

1000030640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×1000030640² = 2000122561877619200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is not an unprimeable number, because it can be changed into a prime (1000030649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 892325 + ... + 893444.

It is an arithmetic number, because the mean of its divisors is an integer number (66430644).

Almost surely, 2^1000030640 is an apocalyptic number.

1000030640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1000030640 is an abundant number, since it is smaller than the sum of its proper divisors (1657195120).

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

1000030640 is a wasteful number, since it uses less digits than its factorization.

1000030640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1785789 (or 1785783 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1000030640 is about 31623.2610589104. The cubic root of 1000030640 is about 1000.0102132290.

Adding to 1000030640 its reverse (460300001), we get a palindrome (1460330641).

The spelling of 1000030640 in words is "one billion, thirty thousand, six hundred forty".