1341133440 has 64 divisors (see below), whose sum is σ = 4274868960. Its totient is φ = 357635072.

The previous prime is 1341133421. The next prime is 1341133457. The reversal of 1341133440 is 443311431.

It is a tau number, because it is divible by the number of its divisors (64).

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 1341133440.

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, 347334 + ... + 351173.

Almost surely, 2^1341133440 is an apocalyptic number.

1341133440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1341133440 is an abundant number, since it is smaller than the sum of its proper divisors (2933735520).

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

1341133440 is an equidigital number, since it uses as much as digits as its factorization.

1341133440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 698529 (or 698517 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 1341133440 is about 36621.4887736695. The cubic root of 1341133440 is about 1102.7845266028.

Adding to 1341133440 its reverse (443311431), we get a palindrome (1784444871).

The spelling of 1341133440 in words is "one billion, three hundred forty-one million, one hundred thirty-three thousand, four hundred forty".