3540636736 has 56 divisors (see below), whose sum is σ = 8647338560. Its totient is φ = 1400689152.

The previous prime is 3540636707. The next prime is 3540636739. The reversal of 3540636736 is 6376360453.

It is a tau number, because it is divible by the number of its divisors (56).

It is a super-2 number, since 2×3540636736² = 25072216992625467392, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3540636692 and 3540636701.

It is not an unprimeable number, because it can be changed into a prime (3540636739) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 298146 + ... + 309793.

It is an arithmetic number, because the mean of its divisors is an integer number (154416760).

Almost surely, 2^3540636736 is an apocalyptic number.

It is an amenable number.

3540636736 is an abundant number, since it is smaller than the sum of its proper divisors (5106701824).

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

3540636736 is a wasteful number, since it uses less digits than its factorization.

3540636736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 607971 (or 607961 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 43.

The square root of 3540636736 is about 59503.2497936037. The cubic root of 3540636736 is about 1524.1479408972.

The spelling of 3540636736 in words is "three billion, five hundred forty million, six hundred thirty-six thousand, seven hundred thirty-six".