1345406 has 4 divisors (see below), whose sum is σ = 2018112. Its totient is φ = 672702.

The previous prime is 1345361. The next prime is 1345423. The reversal of 1345406 is 6045431.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6045431 = 7 ⋅863633.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336350 + ... + 336353.

It is an arithmetic number, because the mean of its divisors is an integer number (504528).

2^1345406 is an apocalyptic number.

1345406 is a deficient number, since it is larger than the sum of its proper divisors (672706).

1345406 is an equidigital number, since it uses as much as digits as its factorization.

1345406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672705.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 1345406 is about 1159.9163762962. The cubic root of 1345406 is about 110.3954362568.

The spelling of 1345406 in words is "one million, three hundred forty-five thousand, four hundred six".