1356416 has 16 divisors (see below), whose sum is σ = 2702490. Its totient is φ = 678144.

The previous prime is 1356409. The next prime is 1356427. The reversal of 1356416 is 6146531.

It can be written as a sum of positive squares in only one way, i.e., 1345600 + 10816 = 1160^2 + 104^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5171 + ... + 5426.

2^1356416 is an apocalyptic number.

1356416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1356416 is a deficient number, since it is larger than the sum of its proper divisors (1346074).

1356416 is an equidigital number, since it uses as much as digits as its factorization.

1356416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10611 (or 10599 counting only the distinct ones).

The product of its digits is 2160, while the sum is 26.

The square root of 1356416 is about 1164.6527379438. The cubic root of 1356416 is about 110.6957553250.

The spelling of 1356416 in words is "one million, three hundred fifty-six thousand, four hundred sixteen".