1290016 has 48 divisors (see below), whose sum is σ = 3132864. Its totient is φ = 509184.

The previous prime is 1290013. The next prime is 1290019. The reversal of 1290016 is 6100921.

It is an interprime number because it is at equal distance from previous prime (1290013) and next prime (1290019).

It is a super-3 number, since 3×1290016³ = 6440306633372172288, which contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1289975 and 1290002.

It is not an unprimeable number, because it can be changed into a prime (1290013) 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, 2691 + ... + 3133.

It is an arithmetic number, because the mean of its divisors is an integer number (65268).

2^1290016 is an apocalyptic number.

1290016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1290016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1566432).

1290016 is an abundant number, since it is smaller than the sum of its proper divisors (1842848).

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

1290016 is a wasteful number, since it uses less digits than its factorization.

1290016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473 (or 465 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 1290016 is about 1135.7887127455. The cubic root of 1290016 is about 108.8591734053.

Adding to 1290016 its reverse (6100921), we get a palindrome (7390937).

The spelling of 1290016 in words is "one million, two hundred ninety thousand, sixteen".