220936992438 has 8 divisors (see below), whose sum is σ = 441873984888. Its totient is φ = 73645664144.

The previous prime is 220936992349. The next prime is 220936992469. The reversal of 220936992438 is 834299639022.

It is a sphenic number, since it is the product of 3 distinct primes.

220936992438 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18411416031 + ... + 18411416042.

It is an arithmetic number, because the mean of its divisors is an integer number (55234248111).

Almost surely, 2^220936992438 is an apocalyptic number.

220936992438 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

220936992438 is a wasteful number, since it uses less digits than its factorization.

220936992438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36822832078.

The product of its (nonzero) digits is 10077696, while the sum is 57.

The spelling of 220936992438 in words is "two hundred twenty billion, nine hundred thirty-six million, nine hundred ninety-two thousand, four hundred thirty-eight".