7142660 has 48 divisors (see below), whose sum is σ = 17302656. Its totient is φ = 2426112.

The previous prime is 7142659. The next prime is 7142699. The reversal of 7142660 is 662417.

7142660 = 182² + 183² + ... + 301².

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22664 + ... + 22976.

It is an arithmetic number, because the mean of its divisors is an integer number (360472).

Almost surely, 2^7142660 is an apocalyptic number.

7142660 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7142660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8651328).

7142660 is an abundant number, since it is smaller than the sum of its proper divisors (10159996).

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

7142660 is a wasteful number, since it uses less digits than its factorization.

7142660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492 (or 490 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 7142660 is about 2672.5755368184. The cubic root of 7142660 is about 192.5839067509.

The spelling of 7142660 in words is "seven million, one hundred forty-two thousand, six hundred sixty".