7280464 has 20 divisors (see below), whose sum is σ = 14163156. Its totient is φ = 3625472.

The previous prime is 7280461. The next prime is 7280491. The reversal of 7280464 is 4640827.

It can be written as a sum of positive squares in 2 ways, for example, as 3968064 + 3312400 = 1992^2 + 1820^2 .

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7280461) 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, 3912 + ... + 5464.

Almost surely, 2^7280464 is an apocalyptic number.

It is an amenable number.

7280464 is a deficient number, since it is larger than the sum of its proper divisors (6882692).

7280464 is a wasteful number, since it uses less digits than its factorization.

7280464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1854 (or 1848 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 7280464 is about 2698.2334961971. The cubic root of 7280464 is about 193.8145391652.

It can be divided in two parts, 7280 and 464, that added together give a square (7744 = 88²).

The spelling of 7280464 in words is "seven million, two hundred eighty thousand, four hundred sixty-four".