3600400540 has 24 divisors (see below), whose sum is σ = 8248190832. Its totient is φ = 1309236480.

The previous prime is 3600400537. The next prime is 3600400541. The reversal of 3600400540 is 450040063.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3600400541) 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, 8182509 + ... + 8182948.

It is an arithmetic number, because the mean of its divisors is an integer number (343674618).

Almost surely, 2^3600400540 is an apocalyptic number.

It is an amenable number.

3600400540 is an abundant number, since it is smaller than the sum of its proper divisors (4647790292).

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

3600400540 is a wasteful number, since it uses less digits than its factorization.

3600400540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16365477 (or 16365475 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 3600400540 is about 60003.3377404957. The cubic root of 3600400540 is about 1532.6757029718.

The spelling of 3600400540 in words is "three billion, six hundred million, four hundred thousand, five hundred forty".