39221442 has 32 divisors (see below), whose sum is σ = 93864960. Its totient is φ = 12067920.

The previous prime is 39221423. The next prime is 39221447. The reversal of 39221442 is 24412293.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (39221447) 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, 27234 + ... + 28637.

It is an arithmetic number, because the mean of its divisors is an integer number (2933280).

Almost surely, 2^39221442 is an apocalyptic number.

39221442 is an abundant number, since it is smaller than the sum of its proper divisors (54643518).

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

39221442 is a wasteful number, since it uses less digits than its factorization.

39221442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55895 (or 55889 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 39221442 is about 6262.7024518174. The cubic root of 39221442 is about 339.7617766094.

The spelling of 39221442 in words is "thirty-nine million, two hundred twenty-one thousand, four hundred forty-two".