1941900489 has 27 divisors (see below), whose sum is σ = 2890106037. Its totient is φ = 1256438304.

The previous prime is 1941900479. The next prime is 1941900517. The reversal of 1941900489 is 9840091491.

The square root of 1941900489 is 44067.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 671690889 + 1270209600 = 25917^2 + 35640^2 .

It is not a de Polignac number, because 1941900489 - 2²⁵ = 1908346057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1941900409) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 4891239 + ... + 4891635.

Almost surely, 2^1941900489 is an apocalyptic number.

1941900489 is the 44067-th square number.

1941900489 is the 22034-th centered octagonal number.

It is an amenable number.

1941900489 is a deficient number, since it is larger than the sum of its proper divisors (948205548).

1941900489 is an frugal number, since it uses more digits than its factorization.

1941900489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 874 (or 437 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 45.

The cubic root of 1941900489 is about 1247.6008358083.

The spelling of 1941900489 in words is "one billion, nine hundred forty-one million, nine hundred thousand, four hundred eighty-nine".