2104142240 has 48 divisors (see below), whose sum is σ = 5004455400. Its totient is φ = 835998720.

The previous prime is 2104142237. The next prime is 2104142273. The reversal of 2104142240 is 422414012.

It can be written as a sum of positive squares in 4 ways, for example, as 613255696 + 1490886544 = 24764^2 + 38612^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20291 + ... + 67970.

Almost surely, 2^2104142240 is an apocalyptic number.

2104142240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2104142240 is an abundant number, since it is smaller than the sum of its proper divisors (2900313160).

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

2104142240 is a wasteful number, since it uses less digits than its factorization.

2104142240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88425 (or 88417 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 2104142240 is about 45870.9302281957. The cubic root of 2104142240 is about 1281.4205907620.

Adding to 2104142240 its reverse (422414012), we get a palindrome (2526556252).

The spelling of 2104142240 in words is "two billion, one hundred four million, one hundred forty-two thousand, two hundred forty".