39954438 has 32 divisors (see below), whose sum is σ = 89443200. Its totient is φ = 13219848.

The previous prime is 39954401. The next prime is 39954463. The reversal of 39954438 is 83445993.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 39954393 and 39954402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4845 + ... + 10167.

It is an arithmetic number, because the mean of its divisors is an integer number (2795100).

Almost surely, 2^39954438 is an apocalyptic number.

39954438 is an abundant number, since it is smaller than the sum of its proper divisors (49488762).

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

39954438 is a wasteful number, since it uses less digits than its factorization.

39954438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5473 (or 5467 counting only the distinct ones).

The product of its digits is 466560, while the sum is 45.

The square root of 39954438 is about 6320.9523016710. The cubic root of 39954438 is about 341.8652901288.

The spelling of 39954438 in words is "thirty-nine million, nine hundred fifty-four thousand, four hundred thirty-eight".