1919475000 has 288 divisors, whose sum is σ = 6855030000. Its totient is φ = 483840000.

The previous prime is 1919474969. The next prime is 1919475001. The reversal of 1919475000 is 5749191.

1919475000 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1919475001) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 4274776 + ... + 4275224.

Almost surely, 2^1919475000 is an apocalyptic number.

1919475000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1919475000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3427515000).

1919475000 is an abundant number, since it is smaller than the sum of its proper divisors (4935555000).

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

1919475000 is a wasteful number, since it uses less digits than its factorization.

1919475000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505 (or 478 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 36.

The square root of 1919475000 is about 43811.8134753630. The cubic root of 1919475000 is about 1242.7797075361.

The spelling of 1919475000 in words is "one billion, nine hundred nineteen million, four hundred seventy-five thousand".