4542631640 has 32 divisors (see below), whose sum is σ = 10311382080. Its totient is φ = 1800970752.

The previous prime is 4542631633. The next prime is 4542631649. The reversal of 4542631640 is 461362454.

It is a self number, because there is not a number n which added to its sum of digits gives 4542631640.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4542631649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 497984 + ... + 507023.

It is an arithmetic number, because the mean of its divisors is an integer number (322230690).

Almost surely, 2^4542631640 is an apocalyptic number.

4542631640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4542631640 is an abundant number, since it is smaller than the sum of its proper divisors (5768750440).

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

4542631640 is a wasteful number, since it uses less digits than its factorization.

4542631640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1005131 (or 1005127 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 35.

The square root of 4542631640 is about 67399.0477677541. The cubic root of 4542631640 is about 1656.1608234127.

The spelling of 4542631640 in words is "four billion, five hundred forty-two million, six hundred thirty-one thousand, six hundred forty".