1520228 has 24 divisors (see below), whose sum is σ = 2845920. Its totient is φ = 708480.

The previous prime is 1520227. The next prime is 1520251. The reversal of 1520228 is 8220251.

It is a super-2 number, since 2×1520228² = 4622186343968, which contains 22 as substring.

1520228 is a modest number, since divided by 228 gives 152 as remainder.

It is not an unprimeable number, because it can be changed into a prime (1520221) 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, 6188 + ... + 6428.

It is an arithmetic number, because the mean of its divisors is an integer number (118580).

2^1520228 is an apocalyptic number.

It is an amenable number.

1520228 is a deficient number, since it is larger than the sum of its proper divisors (1325692).

1520228 is a wasteful number, since it uses less digits than its factorization.

1520228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347 (or 345 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 1520228 is about 1232.9752633366. The cubic root of 1520228 is about 114.9836901886.

Adding to 1520228 its reverse (8220251), we get a palindrome (9740479).

The spelling of 1520228 in words is "one million, five hundred twenty thousand, two hundred twenty-eight".