3157230240 has 144 divisors (see below), whose sum is σ = 11242603008. Its totient is φ = 805314048.

The previous prime is 3157230229. The next prime is 3157230257. The reversal of 3157230240 is 420327513.

3157230240 is a `hidden beast` number, since 315 + 7 + 2 + 302 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14544 + ... + 80783.

It is an arithmetic number, because the mean of its divisors is an integer number (78073632).

Almost surely, 2^3157230240 is an apocalyptic number.

3157230240 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 3157230240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5621301504).

3157230240 is an abundant number, since it is smaller than the sum of its proper divisors (8085372768).

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

3157230240 is a wasteful number, since it uses less digits than its factorization.

3157230240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95371 (or 95360 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 3157230240 is about 56189.2359798565. The cubic root of 3157230240 is about 1467.0179167911.

Adding to 3157230240 its reverse (420327513), we get a palindrome (3577557753).

The spelling of 3157230240 in words is "three billion, one hundred fifty-seven million, two hundred thirty thousand, two hundred forty".