1025624 has 8 divisors (see below), whose sum is σ = 1923060. Its totient is φ = 512808.

The previous prime is 1025623. The next prime is 1025641. The reversal of 1025624 is 4265201.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 1025596 and 1025605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025621) by changing a digit.

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 as a sum of consecutive naturals, namely, 64094 + ... + 64109.

2^1025624 is an apocalyptic number.

It is an amenable number.

1025624 is a deficient number, since it is larger than the sum of its proper divisors (897436).

1025624 is a wasteful number, since it uses less digits than its factorization.

1025624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128209 (or 128205 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 1025624 is about 1012.7309613120. The cubic root of 1025624 is about 100.8469400090.

The spelling of 1025624 in words is "one million, twenty-five thousand, six hundred twenty-four".