1146220 has 24 divisors (see below), whose sum is σ = 2427264. Its totient is φ = 454656.

The previous prime is 1146217. The next prime is 1146221. The reversal of 1146220 is 226411.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1146194 and 1146203.

It is not an unprimeable number, because it can be changed into a prime (1146221) 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, 4332 + ... + 4588.

It is an arithmetic number, because the mean of its divisors is an integer number (101136).

2^1146220 is an apocalyptic number.

1146220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1146220 is an abundant number, since it is smaller than the sum of its proper divisors (1281044).

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

1146220 is a wasteful number, since it uses less digits than its factorization.

1146220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489 (or 487 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1146220 is about 1070.6166447426. The cubic root of 1146220 is about 104.6540389831.

The spelling of 1146220 in words is "one million, one hundred forty-six thousand, two hundred twenty".