4490030021939 has 24 divisors (see below), whose sum is σ = 5631683639808. Its totient is φ = 3477772581840.

The previous prime is 4490030021933. The next prime is 4490030021941. The reversal of 4490030021939 is 9391200300944.

It is not a de Polignac number, because 4490030021939 - 2¹² = 4490030017843 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4490030021939.

It is not an unprimeable number, because it can be changed into a prime (4490030021933) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1102022 + ... + 3192884.

It is an arithmetic number, because the mean of its divisors is an integer number (234653484992).

Almost surely, 2^{4490030021939} is an apocalyptic number.

4490030021939 is a deficient number, since it is larger than the sum of its proper divisors (1141653617869).

4490030021939 is a wasteful number, since it uses less digits than its factorization.

4490030021939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2091215 (or 2091048 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 44.

The spelling of 4490030021939 in words is "four trillion, four hundred ninety billion, thirty million, twenty-one thousand, nine hundred thirty-nine".