1601441040 has 40 divisors (see below), whose sum is σ = 4964467968. Its totient is φ = 427050880.

The previous prime is 1601441029. The next prime is 1601441041. The reversal of 1601441040 is 401441061.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×1601441040² = 5129226809192563200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1601440998 and 1601441016.

It is not an unprimeable number, because it can be changed into a prime (1601441041) 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, 3336096 + ... + 3336575.

Almost surely, 2^1601441040 is an apocalyptic number.

1601441040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1601441040 is an abundant number, since it is smaller than the sum of its proper divisors (3363026928).

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

1601441040 is a wasteful number, since it uses less digits than its factorization.

1601441040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6672687 (or 6672681 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 1601441040 is about 40018.0089459733. The cubic root of 1601441040 is about 1169.9581254646.

Adding to 1601441040 its sum of digits (21), we get a palindrome (1601441061).

The spelling of 1601441040 in words is "one billion, six hundred one million, four hundred forty-one thousand, forty".