20029480746 has 64 divisors (see below), whose sum is σ = 44285377536. Its totient is φ = 5988819200.

The previous prime is 20029480717. The next prime is 20029480787. The reversal of 20029480746 is 64708492002.

It is a junction number, because it is equal to n+sod(n) for n = 20029480698 and 20029480707.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1687051 + ... + 1698881.

It is an arithmetic number, because the mean of its divisors is an integer number (691959024).

Almost surely, 2^20029480746 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20029480746, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22142688768).

20029480746 is an abundant number, since it is smaller than the sum of its proper divisors (24255896790).

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

20029480746 is a wasteful number, since it uses less digits than its factorization.

20029480746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12187.

The product of its (nonzero) digits is 193536, while the sum is 42.

The spelling of 20029480746 in words is "twenty billion, twenty-nine million, four hundred eighty thousand, seven hundred forty-six".