1949203968 has 40 divisors (see below), whose sum is σ = 5192805288. Its totient is φ = 649734144.

The previous prime is 1949203951. The next prime is 1949203973. The reversal of 1949203968 is 8693029491.

It is a super-2 number, since 2×1949203968² = 7598792217733890048, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1949203968.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 632971 + ... + 636042.

Almost surely, 2^1949203968 is an apocalyptic number.

It is an amenable number.

1949203968 is an abundant number, since it is smaller than the sum of its proper divisors (3243601320).

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

1949203968 is an equidigital number, since it uses as much as digits as its factorization.

1949203968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1269034 (or 1269018 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 51.

The square root of 1949203968 is about 44149.7901240765. The cubic root of 1949203968 is about 1249.1629527800.

The spelling of 1949203968 in words is "one billion, nine hundred forty-nine million, two hundred three thousand, nine hundred sixty-eight".