1345404 has 24 divisors (see below), whose sum is σ = 3161088. Its totient is φ = 445360.

The previous prime is 1345361. The next prime is 1345423. The reversal of 1345404 is 4045431.

It is a super-2 number, since 2×1345404² = 3620223846432, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1999 + ... + 2585.

It is an arithmetic number, because the mean of its divisors is an integer number (131712).

2^1345404 is an apocalyptic number.

It is an amenable number.

1345404 is an abundant number, since it is smaller than the sum of its proper divisors (1815684).

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

1345404 is a wasteful number, since it uses less digits than its factorization.

1345404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 785 (or 783 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 1345404 is about 1159.9155141647. The cubic root of 1345404 is about 110.3953815543.

The spelling of 1345404 in words is "one million, three hundred forty-five thousand, four hundred four".