1902849984 has 504 divisors, whose sum is σ = 7006791168. Its totient is φ = 482549760.

The previous prime is 1902849983. The next prime is 1902850003. The reversal of 1902849984 is 4899482091.

It is a tau number, because it is divible by the number of its divisors (504).

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1902849984.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1902849983) 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, 26800669 + ... + 26800739.

Almost surely, 2^1902849984 is an apocalyptic number.

1902849984 is a gapful number since it is divisible by the number (14) 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 1902849984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3503395584).

1902849984 is an abundant number, since it is smaller than the sum of its proper divisors (5103941184).

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

1902849984 is a wasteful number, since it uses less digits than its factorization.

1902849984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153 (or 123 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 54.

The square root of 1902849984 is about 43621.6687438709. The cubic root of 1902849984 is about 1239.1812979390.

The spelling of 1902849984 in words is "one billion, nine hundred two million, eight hundred forty-nine thousand, nine hundred eighty-four".