4521920364 has 96 divisors (see below), whose sum is σ = 12698965440. Its totient is φ = 1383243264.

The previous prime is 4521920357. The next prime is 4521920387. The reversal of 4521920364 is 4630291254.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 233584 + ... + 252200.

It is an arithmetic number, because the mean of its divisors is an integer number (132280890).

Almost surely, 2^4521920364 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 4521920364, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6349482720).

4521920364 is an abundant number, since it is smaller than the sum of its proper divisors (8177045076).

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

4521920364 is a wasteful number, since it uses less digits than its factorization.

4521920364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18816 (or 18808 counting only the distinct ones).

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

The square root of 4521920364 is about 67245.2255851670. The cubic root of 4521920364 is about 1653.6400036876.

The spelling of 4521920364 in words is "four billion, five hundred twenty-one million, nine hundred twenty thousand, three hundred sixty-four".