3201744540 has 48 divisors (see below), whose sum is σ = 8980255872. Its totient is φ = 852334656.

The previous prime is 3201744517. The next prime is 3201744547. The reversal of 3201744540 is 454471023.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 3201744498 and 3201744507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3201744547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10234 + ... + 80673.

It is an arithmetic number, because the mean of its divisors is an integer number (187088664).

Almost surely, 2^3201744540 is an apocalyptic number.

3201744540 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3201744540 is an abundant number, since it is smaller than the sum of its proper divisors (5778511332).

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

3201744540 is a wasteful number, since it uses less digits than its factorization.

3201744540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91506 (or 91504 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 30.

The square root of 3201744540 is about 56583.9600947124. The cubic root of 3201744540 is about 1473.8803399871.

The spelling of 3201744540 in words is "three billion, two hundred one million, seven hundred forty-four thousand, five hundred forty".