2003151440 has 40 divisors (see below), whose sum is σ = 4669686240. Its totient is φ = 799134336.

The previous prime is 2003151407. The next prime is 2003151509. The reversal of 2003151440 is 441513002.

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

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2714 + ... + 63353.

It is an arithmetic number, because the mean of its divisors is an integer number (116742156).

Almost surely, 2^2003151440 is an apocalyptic number.

2003151440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2003151440 is an abundant number, since it is smaller than the sum of its proper divisors (2666534800).

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

2003151440 is a wasteful number, since it uses less digits than its factorization.

2003151440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66459 (or 66453 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 2003151440 is about 44756.5798514587. The cubic root of 2003151440 is about 1260.5824635478.

Adding to 2003151440 its reverse (441513002), we get a palindrome (2444664442).

The spelling of 2003151440 in words is "two billion, three million, one hundred fifty-one thousand, four hundred forty".