1285038 has 32 divisors (see below), whose sum is σ = 2916000. Its totient is φ = 419328.

The previous prime is 1285021. The next prime is 1285049. The reversal of 1285038 is 8305821.

It is a happy number.

It is a super-2 number, since 2×1285038² = 3302645322888, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 2638 + ... + 3086.

It is an arithmetic number, because the mean of its divisors is an integer number (91125).

2^1285038 is an apocalyptic number.

1285038 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1285038, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1458000).

1285038 is an abundant number, since it is smaller than the sum of its proper divisors (1630962).

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

1285038 is a wasteful number, since it uses less digits than its factorization.

1285038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513 (or 507 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 1285038 is about 1133.5951658330. The cubic root of 1285038 is about 108.7189685540.

The spelling of 1285038 in words is "one million, two hundred eighty-five thousand, thirty-eight".