4399270380 has 60 divisors (see below), whose sum is σ = 13800679200. Its totient is φ = 1173138336.

The previous prime is 4399270373. The next prime is 4399270409. The reversal of 4399270380 is 830729934.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (60).

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

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1356180 + ... + 1359419.

It is an arithmetic number, because the mean of its divisors is an integer number (230011320).

Almost surely, 2^4399270380 is an apocalyptic number.

It is an amenable number.

4399270380 is an abundant number, since it is smaller than the sum of its proper divisors (9401408820).

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

4399270380 is a wasteful number, since it uses less digits than its factorization.

4399270380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2715620 (or 2715609 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The square root of 4399270380 is about 66326.9958614138. The cubic root of 4399270380 is about 1638.5519614693.

The spelling of 4399270380 in words is "four billion, three hundred ninety-nine million, two hundred seventy thousand, three hundred eighty".