2035640640 has 224 divisors, whose sum is σ = 7216298496. Its totient is φ = 481904640.

The previous prime is 2035640623. The next prime is 2035640681. The reversal of 2035640640 is 460465302.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 2035640598 and 2035640607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 451839 + ... + 456321.

Almost surely, 2^2035640640 is an apocalyptic number.

2035640640 is a gapful number since it is divisible by the number (20) 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 2035640640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3608149248).

2035640640 is an abundant number, since it is smaller than the sum of its proper divisors (5180657856).

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

2035640640 is a wasteful number, since it uses less digits than its factorization.

2035640640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4557 (or 4547 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 2035640640 is about 45118.0744269965. The cubic root of 2035640640 is about 1267.3610941383.

The spelling of 2035640640 in words is "two billion, thirty-five million, six hundred forty thousand, six hundred forty".