2601001040 has 40 divisors (see below), whose sum is σ = 6597086688. Its totient is φ = 945818240.

The previous prime is 2601001027. The next prime is 2601001049. The reversal of 2601001040 is 401001062.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2601001049) 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, 1476962 + ... + 1478721.

Almost surely, 2^2601001040 is an apocalyptic number.

2601001040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2601001040 is an abundant number, since it is smaller than the sum of its proper divisors (3996085648).

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

2601001040 is a wasteful number, since it uses less digits than its factorization.

2601001040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2955707 (or 2955701 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 2601001040 is about 51000.0101960774. The cubic root of 2601001040 is about 1375.2453186535.

The spelling of 2601001040 in words is "two billion, six hundred one million, one thousand, forty".