1228570 has 16 divisors (see below), whose sum is σ = 2527488. Its totient is φ = 421200.

The previous prime is 1228567. The next prime is 1228571. The reversal of 1228570 is 758221.

It is not an unprimeable number, because it can be changed into a prime (1228571) 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, 8706 + ... + 8845.

It is an arithmetic number, because the mean of its divisors is an integer number (157968).

2^1228570 is an apocalyptic number.

1228570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1228570 is an abundant number, since it is smaller than the sum of its proper divisors (1298918).

1228570 is a wasteful number, since it uses less digits than its factorization.

1228570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17565.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 1228570 is about 1108.4087693626. The cubic root of 1228570 is about 107.1025888888.

It can be divided in two parts, 12 and 28570, that added together give a palindrome (28582).

The spelling of 1228570 in words is "one million, two hundred twenty-eight thousand, five hundred seventy".