1941512540 has 48 divisors (see below), whose sum is σ = 4709474784. Its totient is φ = 664473600.

The previous prime is 1941512527. The next prime is 1941512543. The reversal of 1941512540 is 452151491.

It is a junction number, because it is equal to n+sod(n) for n = 1941512497 and 1941512506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1941512543) 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, 255821 + ... + 263300.

It is an arithmetic number, because the mean of its divisors is an integer number (98114058).

Almost surely, 2^1941512540 is an apocalyptic number.

1941512540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1941512540 is an abundant number, since it is smaller than the sum of its proper divisors (2767962244).

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

1941512540 is a wasteful number, since it uses less digits than its factorization.

1941512540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519158 (or 519156 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 32.

The square root of 1941512540 is about 44062.5979715223. The cubic root of 1941512540 is about 1247.5177492076.

It can be divided in two parts, 194151 and 2540, that added together give a palindrome (196691).

The spelling of 1941512540 in words is "one billion, nine hundred forty-one million, five hundred twelve thousand, five hundred forty".