4267721380 has 24 divisors (see below), whose sum is σ = 9651616632. Its totient is φ = 1575773952.

The previous prime is 4267721371. The next prime is 4267721411. The reversal of 4267721380 is 831277624.

It can be written as a sum of positive squares in 4 ways, for example, as 9375844 + 4258345536 = 3062^2 + 65256^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8206897 + ... + 8207416.

It is an arithmetic number, because the mean of its divisors is an integer number (402150693).

Almost surely, 2^4267721380 is an apocalyptic number.

It is an amenable number.

4267721380 is an abundant number, since it is smaller than the sum of its proper divisors (5383895252).

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

4267721380 is a wasteful number, since it uses less digits than its factorization.

4267721380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16414335 (or 16414333 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 40.

The square root of 4267721380 is about 65327.7994425038. The cubic root of 4267721380 is about 1622.0541665492.

The spelling of 4267721380 in words is "four billion, two hundred sixty-seven million, seven hundred twenty-one thousand, three hundred eighty".