1051642 has 8 divisors (see below), whose sum is σ = 1588500. Its totient is φ = 522144.

The previous prime is 1051639. The next prime is 1051643. The reversal of 1051642 is 2461501.

It can be written as a sum of positive squares in 2 ways, for example, as 848241 + 203401 = 921^2 + 451^2 .

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

It is a super-2 number, since 2×1051642² = 2211901792328, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1051643) 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, 1467 + ... + 2062.

2^1051642 is an apocalyptic number.

1051642 is a deficient number, since it is larger than the sum of its proper divisors (536858).

1051642 is a wasteful number, since it uses less digits than its factorization.

1051642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3680.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1051642 is about 1025.4959775640. The cubic root of 1051642 is about 101.6925897645.

The spelling of 1051642 in words is "one million, fifty-one thousand, six hundred forty-two".