39785572224 has 160 divisors (see below), whose sum is σ = 123549837840. Its totient is φ = 12685178880.

The previous prime is 39785572219. The next prime is 39785572231. The reversal of 39785572224 is 42227558793.

It is a super-2 number, since 2×39785572224² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 155044 + ... + 321884.

Almost surely, 2^39785572224 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 39785572224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61774918920).

39785572224 is an abundant number, since it is smaller than the sum of its proper divisors (83764265616).

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

39785572224 is a wasteful number, since it uses less digits than its factorization.

39785572224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166890 (or 166869 counting only the distinct ones).

The product of its digits is 8467200, while the sum is 54.

The spelling of 39785572224 in words is "thirty-nine billion, seven hundred eighty-five million, five hundred seventy-two thousand, two hundred twenty-four".