7138456 has 16 divisors (see below), whose sum is σ = 14414400. Its totient is φ = 3294624.

The previous prime is 7138409. The next prime is 7138489. The reversal of 7138456 is 6548317.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34216 + ... + 34423.

It is an arithmetic number, because the mean of its divisors is an integer number (900900).

Almost surely, 2^7138456 is an apocalyptic number.

It is an amenable number.

7138456 is an abundant number, since it is smaller than the sum of its proper divisors (7275944).

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

7138456 is a wasteful number, since it uses less digits than its factorization.

7138456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68658 (or 68654 counting only the distinct ones).

The product of its digits is 20160, while the sum is 34.

The square root of 7138456 is about 2671.7889138179. The cubic root of 7138456 is about 192.5461158981.

It can be divided in two parts, 713 and 8456, that multiplied together give a triangular number (6029128 = T₃₄₇₂).

The spelling of 7138456 in words is "seven million, one hundred thirty-eight thousand, four hundred fifty-six".