1246041240 has 32 divisors (see below), whose sum is σ = 3738124080. Its totient is φ = 332277632.

The previous prime is 1246041227. The next prime is 1246041241. The reversal of 1246041240 is 421406421.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 1246041240.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1246041241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5191719 + ... + 5191958.

Almost surely, 2^1246041240 is an apocalyptic number.

1246041240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1246041240 is an abundant number, since it is smaller than the sum of its proper divisors (2492082840).

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

1246041240 is a wasteful number, since it uses less digits than its factorization.

1246041240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10383691 (or 10383687 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 1246041240 is about 35299.3093416854. The cubic root of 1246041240 is about 1076.0789570911.

Adding to 1246041240 its reverse (421406421), we get a palindrome (1667447661).

The spelling of 1246041240 in words is "one billion, two hundred forty-six million, forty-one thousand, two hundred forty".