7498443540 has 144 divisors (see below), whose sum is σ = 24648624000. Its totient is φ = 1698133248.

The previous prime is 7498443539. The next prime is 7498443571. The reversal of 7498443540 is 453448947.

It is a self number, because there is not a number n which added to its sum of digits gives 7498443540.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 308761 + ... + 332159.

It is an arithmetic number, because the mean of its divisors is an integer number (171171000).

Almost surely, 2^7498443540 is an apocalyptic number.

7498443540 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 7498443540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12324312000).

7498443540 is an abundant number, since it is smaller than the sum of its proper divisors (17150180460).

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

7498443540 is a wasteful number, since it uses less digits than its factorization.

7498443540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23534 (or 23525 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 48.

The square root of 7498443540 is about 86593.5536861723. The cubic root of 7498443540 is about 1957.2984037744.

The spelling of 7498443540 in words is "seven billion, four hundred ninety-eight million, four hundred forty-three thousand, five hundred forty".