7138770 has 16 divisors (see below), whose sum is σ = 17133120. Its totient is φ = 1903664.

The previous prime is 7138753. The next prime is 7138771. The reversal of 7138770 is 778317.

It is a super-2 number, since 2×7138770² = 101924074225800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7138771) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118950 + ... + 119009.

It is an arithmetic number, because the mean of its divisors is an integer number (1070820).

Almost surely, 2^7138770 is an apocalyptic number.

7138770 is an abundant number, since it is smaller than the sum of its proper divisors (9994350).

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

7138770 is a wasteful number, since it uses less digits than its factorization.

7138770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237969.

The product of its (nonzero) digits is 8232, while the sum is 33.

The square root of 7138770 is about 2671.8476752989. The cubic root of 7138770 is about 192.5489390387.

The spelling of 7138770 in words is "seven million, one hundred thirty-eight thousand, seven hundred seventy".