4640999040 has 96 divisors (see below), whose sum is σ = 16025969700. Its totient is φ = 1237598208.

The previous prime is 4640999003. The next prime is 4640999089. The reversal of 4640999040 is 409990464.

It can be written as a sum of positive squares in 2 ways, for example, as 4570841664 + 70157376 = 67608^2 + 8376^2 .

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 397105 + ... + 408624.

Almost surely, 2^4640999040 is an apocalyptic number.

4640999040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4640999040 is an abundant number, since it is smaller than the sum of its proper divisors (11384970660).

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

4640999040 is a wasteful number, since it uses less digits than its factorization.

4640999040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 805754 (or 805739 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The square root of 4640999040 is about 68124.8782751206. The cubic root of 4640999040 is about 1668.0298805958.

The spelling of 4640999040 in words is "four billion, six hundred forty million, nine hundred ninety-nine thousand, forty".