1900105446 has 16 divisors (see below), whose sum is σ = 3801672000. Its totient is φ = 633124968.

The previous prime is 1900105439. The next prime is 1900105451. The reversal of 1900105446 is 6445010091.

It is a happy number.

It is a super-2 number, since 2×1900105446² = 7220801411837717832, which contains 22 as substring.

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, 43596 + ... + 75503.

It is an arithmetic number, because the mean of its divisors is an integer number (237604500).

Almost surely, 2^1900105446 is an apocalyptic number.

1900105446 is an abundant number, since it is smaller than the sum of its proper divisors (1901566554).

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

1900105446 is a wasteful number, since it uses less digits than its factorization.

1900105446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121763.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 1900105446 is about 43590.1989671990. The cubic root of 1900105446 is about 1238.5852417402.

The spelling of 1900105446 in words is "one billion, nine hundred million, one hundred five thousand, four hundred forty-six".