3949761270 has 128 divisors (see below), whose sum is σ = 11735829504. Its totient is φ = 828440064.

The previous prime is 3949761253. The next prime is 3949761271. The reversal of 3949761270 is 721679493.

It is a happy number.

It is a super-2 number, since 2×3949761270² = 31201228179984025800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3949761271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 468109 + ... + 476471.

It is an arithmetic number, because the mean of its divisors is an integer number (91686168).

Almost surely, 2^3949761270 is an apocalyptic number.

3949761270 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 3949761270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5867914752).

3949761270 is an abundant number, since it is smaller than the sum of its proper divisors (7786068234).

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

3949761270 is a wasteful number, since it uses less digits than its factorization.

3949761270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8566.

The product of its (nonzero) digits is 571536, while the sum is 48.

The square root of 3949761270 is about 62847.1261872808. The cubic root of 3949761270 is about 1580.7272822788.

The spelling of 3949761270 in words is "three billion, nine hundred forty-nine million, seven hundred sixty-one thousand, two hundred seventy".