7138480 has 20 divisors (see below), whose sum is σ = 16597152. Its totient is φ = 2855360.

The previous prime is 7138409. The next prime is 7138489. The reversal of 7138480 is 848317.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (7138489) 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, 44536 + ... + 44695.

Almost surely, 2^7138480 is an apocalyptic number.

It is an amenable number.

7138480 is an abundant number, since it is smaller than the sum of its proper divisors (9458672).

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

7138480 is a wasteful number, since it uses less digits than its factorization.

7138480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89244 (or 89238 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 7138480 is about 2671.7934051869. The cubic root of 7138480 is about 192.5463316825.

The spelling of 7138480 in words is "seven million, one hundred thirty-eight thousand, four hundred eighty".