1280070 has 64 divisors (see below), whose sum is σ = 3732480. Its totient is φ = 309600.

The previous prime is 1280023. The next prime is 1280101. The reversal of 1280070 is 700821.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2755 + ... + 3185.

It is an arithmetic number, because the mean of its divisors is an integer number (58320).

2^1280070 is an apocalyptic number.

1280070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1280070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1866240).

1280070 is an abundant number, since it is smaller than the sum of its proper divisors (2452410).

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

1280070 is a wasteful number, since it uses less digits than its factorization.

1280070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458 (or 452 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 18.

The square root of 1280070 is about 1131.4017853972. The cubic root of 1280070 is about 108.5786838906.

Adding to 1280070 its reverse (700821), we get a palindrome (1980891).

The spelling of 1280070 in words is "one million, two hundred eighty thousand, seventy".