20190546432 has 480 divisors, whose sum is σ = 71316685440. Its totient is φ = 5620285440.

The previous prime is 20190546367. The next prime is 20190546437. The reversal of 20190546432 is 23464509102.

It is a happy number.

20190546432 is a `hidden beast` number, since 2 + 0 + 1 + 9 + 0 + 5 + 4 + 643 + 2 = 666.

It is a super-3 number, since 3×20190546432³ (a number of 32 digits) contains 333 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (20190546437) 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, 27772053 + ... + 27772779.

It is an arithmetic number, because the mean of its divisors is an integer number (148576428).

Almost surely, 2^20190546432 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 20190546432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35658342720).

20190546432 is an abundant number, since it is smaller than the sum of its proper divisors (51126139008).

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

20190546432 is an equidigital number, since it uses as much as digits as its factorization.

20190546432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809 (or 780 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The spelling of 20190546432 in words is "twenty billion, one hundred ninety million, five hundred forty-six thousand, four hundred thirty-two".