1955642 has 8 divisors (see below), whose sum is σ = 3159156. Its totient is φ = 902592.

The previous prime is 1955641. The next prime is 1955671. The reversal of 1955642 is 2465591.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1560001 + 395641 = 1249^2 + 629^2 .

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

It is a d-powerful number, because it can be written as 1 + 9² + 5³ + 5⁹ + 6 + 4⁴ + 2¹¹ .

It is a junction number, because it is equal to n+sod(n) for n = 1955599 and 1955608.

It is not an unprimeable number, because it can be changed into a prime (1955641) 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, 37583 + ... + 37634.

2^1955642 is an apocalyptic number.

1955642 is a deficient number, since it is larger than the sum of its proper divisors (1203514).

1955642 is a wasteful number, since it uses less digits than its factorization.

1955642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75232.

The product of its digits is 10800, while the sum is 32.

The square root of 1955642 is about 1398.4427052976. The cubic root of 1955642 is about 125.0536729504.

The spelling of 1955642 in words is "one million, nine hundred fifty-five thousand, six hundred forty-two".