1944492100 has 36 divisors (see below), whose sum is σ = 4246458244. Its totient is φ = 772836480.

The previous prime is 1944492073. The next prime is 1944492103. The reversal of 1944492100 is 12944491.

It can be written as a sum of positive squares in 6 ways, for example, as 17106496 + 1927385604 = 4136^2 + 43902^2 .

It is not an unprimeable number, because it can be changed into a prime (1944492103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46227 + ... + 77626.

Almost surely, 2^1944492100 is an apocalyptic number.

1944492100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1944492100 is an abundant number, since it is smaller than the sum of its proper divisors (2301966144).

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

1944492100 is a wasteful number, since it uses less digits than its factorization.

1944492100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124024 (or 124017 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 1944492100 is about 44096.3955443072. The cubic root of 1944492100 is about 1248.1555945400.

The spelling of 1944492100 in words is "one billion, nine hundred forty-four million, four hundred ninety-two thousand, one hundred".