1429618 has 4 divisors (see below), whose sum is σ = 2144430. Its totient is φ = 714808.

The previous prime is 1429609. The next prime is 1429619. The reversal of 1429618 is 8169241.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 762129 + 667489 = 873^2 + 817^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 1429618.

It is not an unprimeable number, because it can be changed into a prime (1429619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 357403 + ... + 357406.

2^1429618 is an apocalyptic number.

1429618 is a deficient number, since it is larger than the sum of its proper divisors (714812).

1429618 is an equidigital number, since it uses as much as digits as its factorization.

1429618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 714811.

The product of its digits is 3456, while the sum is 31.

The square root of 1429618 is about 1195.6663414180. Note that the first 3 decimals coincide. The cubic root of 1429618 is about 112.6522843041.

The spelling of 1429618 in words is "one million, four hundred twenty-nine thousand, six hundred eighteen".