1052690 has 8 divisors (see below), whose sum is σ = 1894860. Its totient is φ = 421072.

The previous prime is 1052663. The next prime is 1052693. The reversal of 1052690 is 962501.

1052690 is an esthetic number in base 16, because in such base its adjacent digits differ by 1.

It can be written as a sum of positive squares in 2 ways, for example, as 958441 + 94249 = 979^2 + 307^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1052690² = 2216312472200, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1052693) 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, 52625 + ... + 52644.

2^1052690 is an apocalyptic number.

1052690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1052690 is a deficient number, since it is larger than the sum of its proper divisors (842170).

1052690 is a wasteful number, since it uses less digits than its factorization.

1052690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105276.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 1052690 is about 1026.0068225894. The cubic root of 1052690 is about 101.7263586871.

The spelling of 1052690 in words is "one million, fifty-two thousand, six hundred ninety".