1241425440 has 120 divisors (see below), whose sum is σ = 4381243020. Its totient is φ = 331043328.

The previous prime is 1241425433. The next prime is 1241425453. The reversal of 1241425440 is 445241421.

It can be written as a sum of positive squares in 2 ways, for example, as 1211875344 + 29550096 = 34812^2 + 5436^2 .

It is a tau number, because it is divible by the number of its divisors (120).

It is a super-2 number, since 2×1241425440² = 3082274246158387200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 34935 + ... + 60854.

Almost surely, 2^1241425440 is an apocalyptic number.

1241425440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1241425440 is an abundant number, since it is smaller than the sum of its proper divisors (3139817580).

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

1241425440 is an equidigital number, since it uses as much as digits as its factorization.

1241425440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95816 (or 95799 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

The square root of 1241425440 is about 35233.8677979015. The cubic root of 1241425440 is about 1074.7485808281.

Adding to 1241425440 its reverse (445241421), we get a palindrome (1686666861).

The spelling of 1241425440 in words is "one billion, two hundred forty-one million, four hundred twenty-five thousand, four hundred forty".