4921438040 has 32 divisors (see below), whose sum is σ = 11455074000. Its totient is φ = 1900692864.

The previous prime is 4921437991. The next prime is 4921438051. The reversal of 4921438040 is 408341294.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2120150 + ... + 2122469.

Almost surely, 2^4921438040 is an apocalyptic number.

4921438040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4921438040 is an abundant number, since it is smaller than the sum of its proper divisors (6533635960).

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

4921438040 is a wasteful number, since it uses less digits than its factorization.

4921438040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4242659 (or 4242655 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 4921438040 is about 70152.9617336289. The cubic root of 4921438040 is about 1700.9726890251.

The spelling of 4921438040 in words is "four billion, nine hundred twenty-one million, four hundred thirty-eight thousand, forty".