213433334040 has 32 divisors (see below), whose sum is σ = 640300002480. Its totient is φ = 56915555712.

The previous prime is 213433334039. The next prime is 213433334057. The reversal of 213433334040 is 40433334312.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 213433333989 and 213433334007.

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, 889305439 + ... + 889305678.

Almost surely, 2^213433334040 is an apocalyptic number.

213433334040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213433334040 is an abundant number, since it is smaller than the sum of its proper divisors (426866668440).

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

213433334040 is a wasteful number, since it uses less digits than its factorization.

213433334040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1778611131 (or 1778611127 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 30.

Adding to 213433334040 its reverse (40433334312), we get a palindrome (253866668352).

The spelling of 213433334040 in words is "two hundred thirteen billion, four hundred thirty-three million, three hundred thirty-four thousand, forty".