7402480 has 40 divisors (see below), whose sum is σ = 18226512. Its totient is φ = 2786304.

The previous prime is 7402471. The next prime is 7402489. The reversal of 7402480 is 842047.

It is an interprime number because it is at equal distance from previous prime (7402471) and next prime (7402489).

It is a tau number, because it is divible by the number of its divisors (40).

It is an Ulam number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7402489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1362 + ... + 4081.

Almost surely, 2^7402480 is an apocalyptic number.

It is an amenable number.

7402480 is an abundant number, since it is smaller than the sum of its proper divisors (10824032).

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

7402480 is a wasteful number, since it uses less digits than its factorization.

7402480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5473 (or 5467 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 25.

The square root of 7402480 is about 2720.7498966278. The cubic root of 7402480 is about 194.8912828132.

The spelling of 7402480 in words is "seven million, four hundred two thousand, four hundred eighty".