3240237840 has 160 divisors (see below), whose sum is σ = 11568116736. Its totient is φ = 734922240.

The previous prime is 3240237739. The next prime is 3240237883. The reversal of 3240237840 is 487320423.

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, 212719 + ... + 227441.

Almost surely, 2^3240237840 is an apocalyptic number.

3240237840 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 3240237840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5784058368).

3240237840 is an abundant number, since it is smaller than the sum of its proper divisors (8327878896).

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

3240237840 is a wasteful number, since it uses less digits than its factorization.

3240237840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14877 (or 14871 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 33.

The square root of 3240237840 is about 56923.0870561322. The cubic root of 3240237840 is about 1479.7634513592.

The spelling of 3240237840 in words is "three billion, two hundred forty million, two hundred thirty-seven thousand, eight hundred forty".