1025498 has 8 divisors (see below), whose sum is σ = 1591380. Its totient is φ = 495040.

The previous prime is 1025483. The next prime is 1025503. The reversal of 1025498 is 8945201.

It can be written as a sum of positive squares in 2 ways, for example, as 1014049 + 11449 = 1007^2 + 107^2 .

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

It is a super-2 number, since 2×1025498² = 2103292296008, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a self number, because there is not a number n which added to its sum of digits gives 1025498.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8783 + ... + 8898.

2^1025498 is an apocalyptic number.

1025498 is a deficient number, since it is larger than the sum of its proper divisors (565882).

1025498 is a wasteful number, since it uses less digits than its factorization.

1025498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17712.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 1025498 is about 1012.6687513694. The cubic root of 1025498 is about 100.8428100891.

The spelling of 1025498 in words is "one million, twenty-five thousand, four hundred ninety-eight".