7641280 has 28 divisors (see below), whose sum is σ = 18196560. Its totient is φ = 3056384.

The previous prime is 7641259. The next prime is 7641281. The reversal of 7641280 is 821467.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7641281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11620 + ... + 12259.

Almost surely, 2^7641280 is an apocalyptic number.

It is an amenable number.

7641280 is an abundant number, since it is smaller than the sum of its proper divisors (10555280).

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

7641280 is a wasteful number, since it uses less digits than its factorization.

7641280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23896 (or 23886 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 7641280 is about 2764.2865263934. The cubic root of 7641280 is about 196.9648386489.

It can be divided in two parts, 7641 and 280, that added together give a square (7921 = 89²).

The spelling of 7641280 in words is "seven million, six hundred forty-one thousand, two hundred eighty".