1906204038 has 16 divisors (see below), whose sum is σ = 3812885760. Its totient is φ = 635321736.

The previous prime is 1906204019. The next prime is 1906204049. The reversal of 1906204038 is 8304026091.

It is a super-2 number, since 2×1906204038² = 7267227668975010888, which contains 22 as substring.

It is a congruent number.

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, 51903 + ... + 80661.

It is an arithmetic number, because the mean of its divisors is an integer number (238305360).

Almost surely, 2^1906204038 is an apocalyptic number.

1906204038 is an abundant number, since it is smaller than the sum of its proper divisors (1906681722).

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

1906204038 is a wasteful number, since it uses less digits than its factorization.

1906204038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39811.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 1906204038 is about 43660.0966329668. The cubic root of 1906204038 is about 1239.9089505641.

The spelling of 1906204038 in words is "one billion, nine hundred six million, two hundred four thousand, thirty-eight".