7049444640 has 192 divisors, whose sum is σ = 26197032960. Its totient is φ = 1559301120.

The previous prime is 7049444603. The next prime is 7049444713. The reversal of 7049444640 is 464449407.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 7049444592 and 7049444601.

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, 70321 + ... + 137999.

It is an arithmetic number, because the mean of its divisors is an integer number (136442880).

Almost surely, 2^7049444640 is an apocalyptic number.

7049444640 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7049444640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13098516480).

7049444640 is an abundant number, since it is smaller than the sum of its proper divisors (19147588320).

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

7049444640 is a wasteful number, since it uses less digits than its factorization.

7049444640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67735 (or 67727 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 42.

The square root of 7049444640 is about 83960.9709329281. The cubic root of 7049444640 is about 1917.4246286952.

The spelling of 7049444640 in words is "seven billion, forty-nine million, four hundred forty-four thousand, six hundred forty".