20447222734 has 16 divisors (see below), whose sum is σ = 31732081920. Its totient is φ = 9869942880.

The previous prime is 20447222713. The next prime is 20447222777. The reversal of 20447222734 is 43722274402.

It is a junction number, because it is equal to n+sod(n) for n = 20447222693 and 20447222702.

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, 727507 + ... + 755089.

It is an arithmetic number, because the mean of its divisors is an integer number (1983255120).

Almost surely, 2^20447222734 is an apocalyptic number.

20447222734 is a deficient number, since it is larger than the sum of its proper divisors (11284859186).

20447222734 is a wasteful number, since it uses less digits than its factorization.

20447222734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40395.

The product of its (nonzero) digits is 150528, while the sum is 37.

The spelling of 20447222734 in words is "twenty billion, four hundred forty-seven million, two hundred twenty-two thousand, seven hundred thirty-four".