7499449590 has 64 divisors (see below), whose sum is σ = 18634095360. Its totient is φ = 1929361280.

The previous prime is 7499449583. The next prime is 7499449603. The reversal of 7499449590 is 959449947.

It is a happy number.

It is a congruent number.

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, 1447705 + ... + 1452875.

It is an arithmetic number, because the mean of its divisors is an integer number (291157740).

Almost surely, 2^7499449590 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7499449590, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9317047680).

7499449590 is an abundant number, since it is smaller than the sum of its proper divisors (11134645770).

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

7499449590 is a wasteful number, since it uses less digits than its factorization.

7499449590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6877.

The product of its (nonzero) digits is 14696640, while the sum is 60.

The square root of 7499449590 is about 86599.3625265221. The cubic root of 7499449590 is about 1957.3859353619.

The spelling of 7499449590 in words is "seven billion, four hundred ninety-nine million, four hundred forty-nine thousand, five hundred ninety".