7438557020 has 48 divisors (see below), whose sum is σ = 16016047488. Its totient is φ = 2900298240.

The previous prime is 7438557011. The next prime is 7438557031. The reversal of 7438557020 is 207558347.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1122557 + ... + 1129163.

It is an arithmetic number, because the mean of its divisors is an integer number (333667656).

Almost surely, 2^7438557020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7438557020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8008023744).

7438557020 is an abundant number, since it is smaller than the sum of its proper divisors (8577490468).

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

7438557020 is a wasteful number, since it uses less digits than its factorization.

7438557020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8030 (or 8028 counting only the distinct ones).

The product of its (nonzero) digits is 235200, while the sum is 41.

The square root of 7438557020 is about 86247.0696313794. The cubic root of 7438557020 is about 1952.0737981455.

The spelling of 7438557020 in words is "seven billion, four hundred thirty-eight million, five hundred fifty-seven thousand, twenty".