20330439954 has 32 divisors (see below), whose sum is σ = 44589588480. Its totient is φ = 6128480400.

The previous prime is 20330439953. The next prime is 20330439977. The reversal of 20330439954 is 45993403302.

It is not an unprimeable number, because it can be changed into a prime (20330439953) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 793774 + ... + 818985.

It is an arithmetic number, because the mean of its divisors is an integer number (1393424640).

Almost surely, 2^20330439954 is an apocalyptic number.

20330439954 is an abundant number, since it is smaller than the sum of its proper divisors (24259148526).

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

20330439954 is a wasteful number, since it uses less digits than its factorization.

20330439954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1612966.

The product of its (nonzero) digits is 349920, while the sum is 42.

The spelling of 20330439954 in words is "twenty billion, three hundred thirty million, four hundred thirty-nine thousand, nine hundred fifty-four".