7478790 has 64 divisors (see below), whose sum is σ = 19844352. Its totient is φ = 1788800.

The previous prime is 7478771. The next prime is 7478791. The reversal of 7478790 is 978747.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7478791) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43144 + ... + 43316.

It is an arithmetic number, because the mean of its divisors is an integer number (310068).

Almost surely, 2^7478790 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7478790, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9922176).

7478790 is an abundant number, since it is smaller than the sum of its proper divisors (12365562).

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

7478790 is a wasteful number, since it uses less digits than its factorization.

7478790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325.

The product of its (nonzero) digits is 98784, while the sum is 42.

The square root of 7478790 is about 2734.7376473805. The cubic root of 7478790 is about 195.5586870816.

The spelling of 7478790 in words is "seven million, four hundred seventy-eight thousand, seven hundred ninety".