1241530040 has 16 divisors (see below), whose sum is σ = 2793442680. Its totient is φ = 496612000.

The previous prime is 1241530027. The next prime is 1241530139. The reversal of 1241530040 is 400351421.

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

It is a junction number, because it is equal to n+sod(n) for n = 1241529994 and 1241530021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15519086 + ... + 15519165.

Almost surely, 2^1241530040 is an apocalyptic number.

1241530040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1241530040 is an abundant number, since it is smaller than the sum of its proper divisors (1551912640).

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

1241530040 is a wasteful number, since it uses less digits than its factorization.

1241530040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31038262 (or 31038258 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 1241530040 is about 35235.3521339010. The cubic root of 1241530040 is about 1074.7787653619.

Adding to 1241530040 its reverse (400351421), we get a palindrome (1641881461).

The spelling of 1241530040 in words is "one billion, two hundred forty-one million, five hundred thirty thousand, forty".