7649490 has 64 divisors (see below), whose sum is σ = 19875456. Its totient is φ = 1876992.

The previous prime is 7649489. The next prime is 7649513. The reversal of 7649490 is 949467.

7649490 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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, 26889 + ... + 27171.

It is an arithmetic number, because the mean of its divisors is an integer number (310554).

Almost surely, 2^7649490 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7649490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9937728).

7649490 is an abundant number, since it is smaller than the sum of its proper divisors (12225966).

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

7649490 is a wasteful number, since it uses less digits than its factorization.

7649490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363.

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 7649490 is about 2765.7711402067. The cubic root of 7649490 is about 197.0353548681.

The spelling of 7649490 in words is "seven million, six hundred forty-nine thousand, four hundred ninety".