3981408270 has 96 divisors (see below), whose sum is σ = 11374121088. Its totient is φ = 888858432.

The previous prime is 3981408251. The next prime is 3981408293. The reversal of 3981408270 is 728041893.

It is a super-2 number, since 2×3981408270² = 31703223624848785800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 31717 + ... + 94703.

It is an arithmetic number, because the mean of its divisors is an integer number (118480428).

Almost surely, 2^3981408270 is an apocalyptic number.

3981408270 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3981408270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5687060544).

3981408270 is an abundant number, since it is smaller than the sum of its proper divisors (7392712818).

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

3981408270 is a wasteful number, since it uses less digits than its factorization.

3981408270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63054 (or 63047 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 3981408270 is about 63098.4014852991. The cubic root of 3981408270 is about 1584.9378541115.

The spelling of 3981408270 in words is "three billion, nine hundred eighty-one million, four hundred eight thousand, two hundred seventy".