39221874 has 16 divisors (see below), whose sum is σ = 87159840. Its totient is φ = 13073940.

The previous prime is 39221869. The next prime is 39221879. The reversal of 39221874 is 47812293.

It is an interprime number because it is at equal distance from previous prime (39221869) and next prime (39221879).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (39221879) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 363112 + ... + 363219.

It is an arithmetic number, because the mean of its divisors is an integer number (5447490).

Almost surely, 2^39221874 is an apocalyptic number.

39221874 is an abundant number, since it is smaller than the sum of its proper divisors (47937966).

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

39221874 is a wasteful number, since it uses less digits than its factorization.

39221874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 726342 (or 726336 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 39221874 is about 6262.7369416254. The cubic root of 39221874 is about 339.7630240269.

The spelling of 39221874 in words is "thirty-nine million, two hundred twenty-one thousand, eight hundred seventy-four".