39742441 has 8 divisors (see below), whose sum is σ = 41678280. Its totient is φ = 37844352.

The previous prime is 39742399. The next prime is 39742453. The reversal of 39742441 is 14424793.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 21123216 + 18619225 = 4596^2 + 4315^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 39742441 - 2¹³ = 39734249 is a prime.

It is a super-3 number, since 3×39742441³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 39742397 and 39742406.

It is not an unprimeable number, because it can be changed into a prime (39742541) 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, 7270 + ... + 11503.

It is an arithmetic number, because the mean of its divisors is an integer number (5209785).

Almost surely, 2^39742441 is an apocalyptic number.

It is an amenable number.

39742441 is a deficient number, since it is larger than the sum of its proper divisors (1935839).

39742441 is a wasteful number, since it uses less digits than its factorization.

39742441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18875.

The product of its digits is 24192, while the sum is 34.

The square root of 39742441 is about 6304.1606102637. The cubic root of 39742441 is about 341.2595753775.

The spelling of 39742441 in words is "thirty-nine million, seven hundred forty-two thousand, four hundred forty-one".