39449390 has 16 divisors (see below), whose sum is σ = 71464032. Its totient is φ = 15678624.

The previous prime is 39449387. The next prime is 39449411. The reversal of 39449390 is 9394493.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10994 + ... + 14133.

It is an arithmetic number, because the mean of its divisors is an integer number (4466502).

Almost surely, 2^39449390 is an apocalyptic number.

39449390 is a deficient number, since it is larger than the sum of its proper divisors (32014642).

39449390 is a wasteful number, since it uses less digits than its factorization.

39449390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25291.

The product of its (nonzero) digits is 104976, while the sum is 41.

The square root of 39449390 is about 6280.8749390511. The cubic root of 39449390 is about 340.4187171167.

The spelling of 39449390 in words is "thirty-nine million, four hundred forty-nine thousand, three hundred ninety".