39450490 has 16 divisors (see below), whose sum is σ = 71086248. Its totient is φ = 15763456.

The previous prime is 39450461. The next prime is 39450529. The reversal of 39450490 is 9405493.

It can be written as a sum of positive squares in 4 ways, for example, as 39425841 + 24649 = 6279^2 + 157^2 .

It is a super-2 number, since 2×39450490² = 3112682322480200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12954 + ... + 15706.

Almost surely, 2^39450490 is an apocalyptic number.

39450490 is a deficient number, since it is larger than the sum of its proper divisors (31635758).

39450490 is a wasteful number, since it uses less digits than its factorization.

39450490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4193.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 39450490 is about 6280.9625058585. The cubic root of 39450490 is about 340.4218811463.

The spelling of 39450490 in words is "thirty-nine million, four hundred fifty thousand, four hundred ninety".