7448640 has 56 divisors (see below), whose sum is σ = 23652480. Its totient is φ = 1986048.

The previous prime is 7448633. The next prime is 7448641. The reversal of 7448640 is 468447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7448641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2920 + ... + 4839.

Almost surely, 2^7448640 is an apocalyptic number.

It is an amenable number.

7448640 is an abundant number, since it is smaller than the sum of its proper divisors (16203840).

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

7448640 is a wasteful number, since it uses less digits than its factorization.

7448640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7779 (or 7769 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 33.

The square root of 7448640 is about 2729.2196686965. The cubic root of 7448640 is about 195.2955413329.

The spelling of 7448640 in words is "seven million, four hundred forty-eight thousand, six hundred forty".