1000213440 has 56 divisors (see below), whose sum is σ = 3175680720. Its totient is φ = 266723328.

The previous prime is 1000213433. The next prime is 1000213457. The reversal of 1000213440 is 443120001.

1000213440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

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, 519985 + ... + 521904.

Almost surely, 2^1000213440 is an apocalyptic number.

1000213440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1000213440 is an abundant number, since it is smaller than the sum of its proper divisors (2175467280).

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

1000213440 is a wasteful number, since it uses less digits than its factorization.

1000213440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1041909 (or 1041899 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 1000213440 is about 31626.1512043435. The cubic root of 1000213440 is about 1000.0711416054.

Adding to 1000213440 its reverse (443120001), we get a palindrome (1443333441).

The spelling of 1000213440 in words is "one billion, two hundred thirteen thousand, four hundred forty".