32001239946 has 32 divisors (see below), whose sum is σ = 68950808640. Its totient is φ = 9842955264.

The previous prime is 32001239903. The next prime is 32001239947. The reversal of 32001239946 is 64993210023.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (32001239947) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 145450 + ... + 291818.

It is an arithmetic number, because the mean of its divisors is an integer number (2154712770).

Almost surely, 2^32001239946 is an apocalyptic number.

32001239946 is an abundant number, since it is smaller than the sum of its proper divisors (36949568694).

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

32001239946 is a wasteful number, since it uses less digits than its factorization.

32001239946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149190.

The product of its (nonzero) digits is 69984, while the sum is 39.

Adding to 32001239946 its reverse (64993210023), we get a palindrome (96994449969).

The spelling of 32001239946 in words is "thirty-two billion, one million, two hundred thirty-nine thousand, nine hundred forty-six".