1667152 has 20 divisors (see below), whose sum is σ = 3342420. Its totient is φ = 804608.

The previous prime is 1667147. The next prime is 1667179. The reversal of 1667152 is 2517661.

It can be written as a sum of positive squares in 2 ways, for example, as 698896 + 968256 = 836^2 + 984^2 .

It is a super-2 number, since 2×1667152² = 5558791582208, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1667152.

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, 1333 + ... + 2260.

It is an arithmetic number, because the mean of its divisors is an integer number (167121).

2^1667152 is an apocalyptic number.

It is an amenable number.

1667152 is an abundant number, since it is smaller than the sum of its proper divisors (1675268).

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

1667152 is a wasteful number, since it uses less digits than its factorization.

1667152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3630 (or 3624 counting only the distinct ones).

The product of its digits is 2520, while the sum is 28.

The square root of 1667152 is about 1291.1824038454. The cubic root of 1667152 is about 118.5746175586.

The spelling of 1667152 in words is "one million, six hundred sixty-seven thousand, one hundred fifty-two".