4640269040 has 80 divisors (see below), whose sum is σ = 11786433120. Its totient is φ = 1684930560.

The previous prime is 4640269027. The next prime is 4640269043. The reversal of 4640269040 is 409620464.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4640269043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 673292 + ... + 680148.

It is an arithmetic number, because the mean of its divisors is an integer number (147330414).

Almost surely, 2^4640269040 is an apocalyptic number.

4640269040 is a gapful number since it is divisible by the number (40) 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 4640269040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5893216560).

4640269040 is an abundant number, since it is smaller than the sum of its proper divisors (7146164080).

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

4640269040 is a wasteful number, since it uses less digits than its factorization.

4640269040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7650 (or 7644 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 35.

The square root of 4640269040 is about 68119.5202566783. The cubic root of 4640269040 is about 1667.9424191353.

The spelling of 4640269040 in words is "four billion, six hundred forty million, two hundred sixty-nine thousand, forty".