3919938490 has 16 divisors (see below), whose sum is σ = 7598650248. Its totient is φ = 1447361856.

The previous prime is 3919938487. The next prime is 3919938511. The reversal of 3919938490 is 948399193.

It can be written as a sum of positive squares in 4 ways, for example, as 3390616441 + 529322049 = 58229^2 + 23007^2 .

It is a super-4 number, since 4×3919938490⁴ (a number of 39 digits) contains 4444 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, 15076557 + ... + 15076816.

Almost surely, 2^3919938490 is an apocalyptic number.

3919938490 is a deficient number, since it is larger than the sum of its proper divisors (3678711758).

3919938490 is a wasteful number, since it uses less digits than its factorization.

3919938490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30153393.

The product of its (nonzero) digits is 1889568, while the sum is 55.

The square root of 3919938490 is about 62609.4121518482. The cubic root of 3919938490 is about 1576.7387854937.

The spelling of 3919938490 in words is "three billion, nine hundred nineteen million, nine hundred thirty-eight thousand, four hundred ninety".