20190487828 has 48 divisors (see below), whose sum is σ = 41785632000. Its totient is φ = 8531150880.

The previous prime is 20190487799. The next prime is 20190487841. The reversal of 20190487828 is 82878409102.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6223 + ... + 201046.

It is an arithmetic number, because the mean of its divisors is an integer number (870534000).

Almost surely, 2^20190487828 is an apocalyptic number.

20190487828 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

20190487828 is an abundant number, since it is smaller than the sum of its proper divisors (21595144172).

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

20190487828 is a wasteful number, since it uses less digits than its factorization.

20190487828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207365 (or 207349 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 49.

The spelling of 20190487828 in words is "twenty billion, one hundred ninety million, four hundred eighty-seven thousand, eight hundred twenty-eight".