1441169640 has 96 divisors (see below), whose sum is σ = 4772238120. Its totient is φ = 377055744.

The previous prime is 1441169623. The next prime is 1441169651. The reversal of 1441169640 is 469611441.

1441169640 is a `hidden beast` number, since 1 + 4 + 4 + 1 + 1 + 6 + 9 + 640 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1343515716 + 97653924 = 36654^2 + 9882^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1441169595 and 1441169604.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18687 + ... + 56846.

Almost surely, 2^1441169640 is an apocalyptic number.

1441169640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1441169640 is an abundant number, since it is smaller than the sum of its proper divisors (3331068480).

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

1441169640 is a wasteful number, since it uses less digits than its factorization.

1441169640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75603 (or 75596 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 1441169640 is about 37962.7401539984. The cubic root of 1441169640 is about 1129.5488945205.

The spelling of 1441169640 in words is "one billion, four hundred forty-one million, one hundred sixty-nine thousand, six hundred forty".