7403649 has 16 divisors (see below), whose sum is σ = 10845120. Its totient is φ = 4455360.

The previous prime is 7403639. The next prime is 7403707. The reversal of 7403649 is 9463047.

7403649 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 7403649 - 2⁴ = 7403633 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (7403629) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4467 + ... + 5895.

It is an arithmetic number, because the mean of its divisors is an integer number (677820).

Almost surely, 2^7403649 is an apocalyptic number.

It is an amenable number.

7403649 is a deficient number, since it is larger than the sum of its proper divisors (3441471).

7403649 is a wasteful number, since it uses less digits than its factorization.

7403649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1600.

The product of its (nonzero) digits is 18144, while the sum is 33.

The square root of 7403649 is about 2720.9647186246. The cubic root of 7403649 is about 194.9015413535.

The spelling of 7403649 in words is "seven million, four hundred three thousand, six hundred forty-nine".