1288958 has 16 divisors (see below), whose sum is σ = 2162160. Its totient is φ = 571200.

The previous prime is 1288951. The next prime is 1288967. The reversal of 1288958 is 8598821.

It is a super-2 number, since 2×1288958² = 3322825451528, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1288951) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188 + ... + 1616.

It is an arithmetic number, because the mean of its divisors is an integer number (135135).

2^1288958 is an apocalyptic number.

1288958 is a deficient number, since it is larger than the sum of its proper divisors (873202).

1288958 is a wasteful number, since it uses less digits than its factorization.

1288958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1483.

The product of its digits is 46080, while the sum is 41.

The square root of 1288958 is about 1135.3228615685. The cubic root of 1288958 is about 108.8294051684.

The spelling of 1288958 in words is "one million, two hundred eighty-eight thousand, nine hundred fifty-eight".