4551388380 has 720 divisors, whose sum is σ = 18687449088. Its totient is φ = 906681600.

The previous prime is 4551388379. The next prime is 4551388417. The reversal of 4551388380 is 838831554.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 42536287 + ... + 42536393.

Almost surely, 2^4551388380 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 4551388380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9343724544).

4551388380 is an abundant number, since it is smaller than the sum of its proper divisors (14136060708).

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

4551388380 is a wasteful number, since it uses less digits than its factorization.

4551388380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188 (or 166 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 45.

The square root of 4551388380 is about 67463.9783884704. The cubic root of 4551388380 is about 1657.2243230221.

The spelling of 4551388380 in words is "four billion, five hundred fifty-one million, three hundred eighty-eight thousand, three hundred eighty".