1398029 has 4 divisors (see below), whose sum is σ = 1480284. Its totient is φ = 1315776.

The previous prime is 1398017. The next prime is 1398031. The reversal of 1398029 is 9208931.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1261129 + 136900 = 1123^2 + 370^2 .

It is a cyclic number.

It is not a de Polignac number, because 1398029 - 2¹² = 1393933 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1397986 and 1398004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1398049) 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, 41102 + ... + 41135.

It is an arithmetic number, because the mean of its divisors is an integer number (370071).

2^1398029 is an apocalyptic number.

It is an amenable number.

1398029 is a deficient number, since it is larger than the sum of its proper divisors (82255).

1398029 is an equidigital number, since it uses as much as digits as its factorization.

1398029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82254.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 1398029 is about 1182.3827637445. The cubic root of 1398029 is about 111.8163710781.

The spelling of 1398029 in words is "one million, three hundred ninety-eight thousand, twenty-nine".