1968203190 has 32 divisors (see below), whose sum is σ = 4767032160. Its totient is φ = 520038144.

The previous prime is 1968203119. The next prime is 1968203191. The reversal of 1968203190 is 913028691.

It is a super-2 number, since 2×1968203190² = 7747647594252352200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1968203191) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 297679 + ... + 304218.

It is an arithmetic number, because the mean of its divisors is an integer number (148969755).

Almost surely, 2^1968203190 is an apocalyptic number.

1968203190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1968203190 is an abundant number, since it is smaller than the sum of its proper divisors (2798828970).

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

1968203190 is a wasteful number, since it uses less digits than its factorization.

1968203190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 602016.

The product of its (nonzero) digits is 23328, while the sum is 39.

The square root of 1968203190 is about 44364.4360946919. The cubic root of 1968203190 is about 1253.2084382267.

The spelling of 1968203190 in words is "one billion, nine hundred sixty-eight million, two hundred three thousand, one hundred ninety".