1910421996 has 144 divisors (see below), whose sum is σ = 5385848832. Its totient is φ = 524966400.

The previous prime is 1910421991. The next prime is 1910422037. The reversal of 1910421996 is 6991240191.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (1910421991) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5668740 + ... + 5669076.

It is an arithmetic number, because the mean of its divisors is an integer number (37401728).

Almost surely, 2^1910421996 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1910421996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2692924416).

1910421996 is an abundant number, since it is smaller than the sum of its proper divisors (3475426836).

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

1910421996 is a wasteful number, since it uses less digits than its factorization.

1910421996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700 (or 691 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 42.

The square root of 1910421996 is about 43708.3744378580. The cubic root of 1910421996 is about 1240.8228141080.

The spelling of 1910421996 in words is "one billion, nine hundred ten million, four hundred twenty-one thousand, nine hundred ninety-six".