1146440 has 16 divisors (see below), whose sum is σ = 2579580. Its totient is φ = 458560.

The previous prime is 1146421. The next prime is 1146461. The reversal of 1146440 is 446411.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1069156 + 77284 = 1034^2 + 278^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14291 + ... + 14370.

2^1146440 is an apocalyptic number.

1146440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1146440 is an abundant number, since it is smaller than the sum of its proper divisors (1433140).

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

1146440 is a wasteful number, since it uses less digits than its factorization.

1146440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28672 (or 28668 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1146440 is about 1070.7193843393. The cubic root of 1146440 is about 104.6607341538.

The spelling of 1146440 in words is "one million, one hundred forty-six thousand, four hundred forty".