3961704540 has 96 divisors (see below), whose sum is σ = 11500828416. Its totient is φ = 1018216960.

The previous prime is 3961704521. The next prime is 3961704557. The reversal of 3961704540 is 454071693.

It is a super-2 number, since 2×3961704540² = 31390205724513223200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 194479 + ... + 213881.

It is an arithmetic number, because the mean of its divisors is an integer number (119800296).

Almost surely, 2^3961704540 is an apocalyptic number.

3961704540 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 3961704540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5750414208).

3961704540 is an abundant number, since it is smaller than the sum of its proper divisors (7539123876).

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

3961704540 is a wasteful number, since it uses less digits than its factorization.

3961704540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19539 (or 19537 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 3961704540 is about 62942.0728924620. The cubic root of 3961704540 is about 1582.3189443687.

The spelling of 3961704540 in words is "three billion, nine hundred sixty-one million, seven hundred four thousand, five hundred forty".