1025478 has 24 divisors (see below), whose sum is σ = 2319408. Its totient is φ = 326832.

The previous prime is 1025477. The next prime is 1025483. The reversal of 1025478 is 8745201.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025477) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 825 + ... + 1652.

It is an arithmetic number, because the mean of its divisors is an integer number (96642).

2^1025478 is an apocalyptic number.

1025478 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1025478 is an abundant number, since it is smaller than the sum of its proper divisors (1293930).

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

1025478 is a wasteful number, since it uses less digits than its factorization.

1025478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2508 (or 2505 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 1025478 is about 1012.6588764238. The cubic root of 1025478 is about 100.8421545152.

The spelling of 1025478 in words is "one million, twenty-five thousand, four hundred seventy-eight".