3927401280 has 336 divisors, whose sum is σ = 14852343168. Its totient is φ = 944640000.

The previous prime is 3927401279. The next prime is 3927401287. The reversal of 3927401280 is 821047293.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3927401287) 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, 4783270 + ... + 4784090.

Almost surely, 2^3927401280 is an apocalyptic number.

3927401280 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3927401280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7426171584).

3927401280 is an abundant number, since it is smaller than the sum of its proper divisors (10924941888).

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

3927401280 is a wasteful number, since it uses less digits than its factorization.

3927401280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1006 (or 993 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 3927401280 is about 62668.9818012069. The cubic root of 3927401280 is about 1577.7387511047.

The spelling of 3927401280 in words is "three billion, nine hundred twenty-seven million, four hundred one thousand, two hundred eighty".