39426220416 has 128 divisors (see below), whose sum is σ = 116183548800. Its totient is φ = 11744768000.

The previous prime is 39426220397. The next prime is 39426220433. The reversal of 39426220416 is 61402262493.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 170116 + ... + 328316.

It is an arithmetic number, because the mean of its divisors is an integer number (907683975).

Almost surely, 2^39426220416 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39426220416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58091774400).

39426220416 is an abundant number, since it is smaller than the sum of its proper divisors (76757328384).

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

39426220416 is a wasteful number, since it uses less digits than its factorization.

39426220416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158288 (or 158276 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 39.

The spelling of 39426220416 in words is "thirty-nine billion, four hundred twenty-six million, two hundred twenty thousand, four hundred sixteen".