2003653464 has 64 divisors (see below), whose sum is σ = 5237706240. Its totient is φ = 637528320.

The previous prime is 2003653451. The next prime is 2003653543. The reversal of 2003653464 is 4643563002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 284109 + ... + 291075.

It is an arithmetic number, because the mean of its divisors is an integer number (81839160).

Almost surely, 2^2003653464 is an apocalyptic number.

2003653464 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2003653464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2618853120).

2003653464 is an abundant number, since it is smaller than the sum of its proper divisors (3234052776).

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

2003653464 is a wasteful number, since it uses less digits than its factorization.

2003653464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7520 (or 7516 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 33.

The square root of 2003653464 is about 44762.1878821847. The cubic root of 2003653464 is about 1260.6877625911.

The spelling of 2003653464 in words is "two billion, three million, six hundred fifty-three thousand, four hundred sixty-four".