4931234640 has 100 divisors (see below), whose sum is σ = 17126930964. Its totient is φ = 1314994176.

The previous prime is 4931234629. The next prime is 4931234647. The reversal of 4931234640 is 464321394.

It is a happy number.

4931234640 is a `hidden beast` number, since 4 + 9 + 3 + 1 + 2 + 3 + 4 + 640 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3524084496 + 1407150144 = 59364^2 + 37512^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 4931234595 and 4931234604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4931234647) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 374017 + ... + 386976.

Almost surely, 2^4931234640 is an apocalyptic number.

4931234640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4931234640 is an abundant number, since it is smaller than the sum of its proper divisors (12195696324).

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

4931234640 is a wasteful number, since it uses less digits than its factorization.

4931234640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761018 (or 761003 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The square root of 4931234640 is about 70222.7501597595. The cubic root of 4931234640 is about 1702.1005913567.

The spelling of 4931234640 in words is "four billion, nine hundred thirty-one million, two hundred thirty-four thousand, six hundred forty".