1025634 has 16 divisors (see below), whose sum is σ = 2095488. Its totient is φ = 334512.

The previous prime is 1025623. The next prime is 1025641. The reversal of 1025634 is 4365201.

It is a happy number.

It is a nialpdrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 1025634.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1537 + ... + 2100.

It is an arithmetic number, because the mean of its divisors is an integer number (130968).

2^1025634 is an apocalyptic number.

1025634 is an abundant number, since it is smaller than the sum of its proper divisors (1069854).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1025634 is a wasteful number, since it uses less digits than its factorization.

1025634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3689.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 1025634 is about 1012.7358984454. The cubic root of 1025634 is about 100.8472677659.

The spelling of 1025634 in words is "one million, twenty-five thousand, six hundred thirty-four".