1512840240 has 240 divisors, whose sum is σ = 5362156800. Its totient is φ = 396285696.

The previous prime is 1512840229. The next prime is 1512840281. The reversal of 1512840240 is 420482151.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1146301 + ... + 1147619.

It is an arithmetic number, because the mean of its divisors is an integer number (22342320).

Almost surely, 2^1512840240 is an apocalyptic number.

1512840240 is a gapful number since it is divisible by the number (10) 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 1512840240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2681078400).

1512840240 is an abundant number, since it is smaller than the sum of its proper divisors (3849316560).

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

1512840240 is a wasteful number, since it uses less digits than its factorization.

1512840240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1406 (or 1388 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 1512840240 is about 38895.2470103996. The cubic root of 1512840240 is about 1147.9712789295.

The spelling of 1512840240 in words is "one billion, five hundred twelve million, eight hundred forty thousand, two hundred forty".