3985420190 has 16 divisors (see below), whose sum is σ = 7199290800. Its totient is φ = 1588493760.

The previous prime is 3985420189. The next prime is 3985420193. The reversal of 3985420190 is 910245893.

It is a super-2 number, since 2×3985420190² = 31767148181719272200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3985420193) 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, 706340 + ... + 711959.

It is an arithmetic number, because the mean of its divisors is an integer number (449955675).

Almost surely, 2^3985420190 is an apocalyptic number.

3985420190 is a deficient number, since it is larger than the sum of its proper divisors (3213870610).

3985420190 is a wasteful number, since it uses less digits than its factorization.

3985420190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1418587.

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 3985420190 is about 63130.1844603673. The cubic root of 3985420190 is about 1585.4700367672.

The spelling of 3985420190 in words is "three billion, nine hundred eighty-five million, four hundred twenty thousand, one hundred ninety".