1441357440 has 64 divisors (see below), whose sum is σ = 4594332960. Its totient is φ = 384361472.

The previous prime is 1441357367. The next prime is 1441357447. The reversal of 1441357440 is 447531441.

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

It is a super-2 number, since 2×1441357440² = 4155022539686707200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1441357447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 373434 + ... + 377273.

Almost surely, 2^1441357440 is an apocalyptic number.

1441357440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1441357440 is an abundant number, since it is smaller than the sum of its proper divisors (3152975520).

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

1441357440 is an equidigital number, since it uses as much as digits as its factorization.

1441357440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 750729 (or 750717 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 33.

The square root of 1441357440 is about 37965.2135513551. The cubic root of 1441357440 is about 1129.5979565377.

Adding to 1441357440 its reverse (447531441), we get a palindrome (1888888881).

The spelling of 1441357440 in words is "one billion, four hundred forty-one million, three hundred fifty-seven thousand, four hundred forty".