39221952 has 168 divisors, whose sum is σ = 132039360. Its totient is φ = 10160640.

The previous prime is 39221939. The next prime is 39221971. The reversal of 39221952 is 25912293.

It is a tau number, because it is divible by the number of its divisors (168).

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 103299 + ... + 103677.

Almost surely, 2^39221952 is an apocalyptic number.

39221952 is a gapful number since it is divisible by the number (32) 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 39221952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66019680).

39221952 is an abundant number, since it is smaller than the sum of its proper divisors (92817408).

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

39221952 is a wasteful number, since it uses less digits than its factorization.

39221952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419 (or 402 counting only the distinct ones).

The product of its digits is 9720, while the sum is 33.

The square root of 39221952 is about 6262.7431689316. The cubic root of 39221952 is about 339.7632492541.

The spelling of 39221952 in words is "thirty-nine million, two hundred twenty-one thousand, nine hundred fifty-two".