1949606900 has 18 divisors (see below), whose sum is σ = 4230647190. Its totient is φ = 779842720.

The previous prime is 1949606899. The next prime is 1949606917. The reversal of 1949606900 is 96069491.

It can be written as a sum of positive squares in 3 ways, for example, as 675688036 + 1273918864 = 25994^2 + 35692^2 .

It is a super-2 number, since 2×1949606900² = 7601934129055220000, 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 5 ways as a sum of consecutive naturals, for example, 9747935 + ... + 9748134.

It is an arithmetic number, because the mean of its divisors is an integer number (235035955).

Almost surely, 2^1949606900 is an apocalyptic number.

1949606900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1949606900 is an abundant number, since it is smaller than the sum of its proper divisors (2281040290).

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

1949606900 is a wasteful number, since it uses less digits than its factorization.

1949606900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19496083 (or 19496076 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 44.

The square root of 1949606900 is about 44154.3531262774. The cubic root of 1949606900 is about 1249.2490209147.

The spelling of 1949606900 in words is "one billion, nine hundred forty-nine million, six hundred six thousand, nine hundred".