7443037890 has 64 divisors (see below), whose sum is σ = 19886428800. Its totient is φ = 1980977472.

The previous prime is 7443037841. The next prime is 7443037933. The reversal of 7443037890 is 987303447.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 114856 + ... + 167564.

It is an arithmetic number, because the mean of its divisors is an integer number (310725450).

Almost surely, 2^7443037890 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7443037890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9943214400).

7443037890 is an abundant number, since it is smaller than the sum of its proper divisors (12443390910).

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

7443037890 is a wasteful number, since it uses less digits than its factorization.

7443037890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53248 (or 53242 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 45.

The square root of 7443037890 is about 86273.0426610769. The cubic root of 7443037890 is about 1952.4656856731.

The spelling of 7443037890 in words is "seven billion, four hundred forty-three million, thirty-seven thousand, eight hundred ninety".