20147406384 has 160 divisors (see below), whose sum is σ = 63361944576. Its totient is φ = 5385093120.

The previous prime is 20147406359. The next prime is 20147406403. The reversal of 20147406384 is 48360474102.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 943344 + ... + 964464.

Almost surely, 2^20147406384 is an apocalyptic number.

20147406384 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20147406384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31680972288).

20147406384 is an abundant number, since it is smaller than the sum of its proper divisors (43214538192).

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

20147406384 is a wasteful number, since it uses less digits than its factorization.

20147406384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21323 (or 21317 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 39.

The spelling of 20147406384 in words is "twenty billion, one hundred forty-seven million, four hundred six thousand, three hundred eighty-four".