39421145 has 8 divisors (see below), whose sum is σ = 48107520. Its totient is φ = 31002160.

The previous prime is 39421141. The next prime is 39421163. The reversal of 39421145 is 54112493.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 39421145 - 2² = 39421141 is a prime.

It is a super-2 number, since 2×39421145² = 3108053346222050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (39421141) 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, 66521 + ... + 67110.

It is an arithmetic number, because the mean of its divisors is an integer number (6013440).

Almost surely, 2^39421145 is an apocalyptic number.

It is an amenable number.

39421145 is a deficient number, since it is larger than the sum of its proper divisors (8686375).

39421145 is a wasteful number, since it uses less digits than its factorization.

39421145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133695.

The product of its digits is 4320, while the sum is 29.

The square root of 39421145 is about 6278.6260439685. The cubic root of 39421145 is about 340.3374533141.

The spelling of 39421145 in words is "thirty-nine million, four hundred twenty-one thousand, one hundred forty-five".