1289416 has 32 divisors (see below), whose sum is σ = 2700000. Its totient is φ = 573696.

The previous prime is 1289411. The next prime is 1289423. The reversal of 1289416 is 6149821.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1289411) 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, 2335 + ... + 2833.

It is an arithmetic number, because the mean of its divisors is an integer number (84375).

2^1289416 is an apocalyptic number.

It is an amenable number.

1289416 is an abundant number, since it is smaller than the sum of its proper divisors (1410584).

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

1289416 is a wasteful number, since it uses less digits than its factorization.

1289416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541 (or 537 counting only the distinct ones).

The product of its digits is 3456, while the sum is 31.

The square root of 1289416 is about 1135.5245483916. The cubic root of 1289416 is about 108.8422936062.

The spelling of 1289416 in words is "one million, two hundred eighty-nine thousand, four hundred sixteen".