1164428 has 6 divisors (see below), whose sum is σ = 2037756. Its totient is φ = 582212.

The previous prime is 1164419. The next prime is 1164431. The reversal of 1164428 is 8244611.

It is a junction number, because it is equal to n+sod(n) for n = 1164397 and 1164406.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 145550 + ... + 145557.

It is an arithmetic number, because the mean of its divisors is an integer number (339626).

2^1164428 is an apocalyptic number.

It is an amenable number.

1164428 is a deficient number, since it is larger than the sum of its proper divisors (873328).

1164428 is a wasteful number, since it uses less digits than its factorization.

1164428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291111 (or 291109 counting only the distinct ones).

The product of its digits is 1536, while the sum is 26.

The square root of 1164428 is about 1079.0866508302. The cubic root of 1164428 is about 105.2052824481.

The spelling of 1164428 in words is "one million, one hundred sixty-four thousand, four hundred twenty-eight".