1213408 has 24 divisors (see below), whose sum is σ = 2730672. Its totient is φ = 519936.

The previous prime is 1213379. The next prime is 1213427. The reversal of 1213408 is 8043121.

It is a congruent number.

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, 2485 + ... + 2932.

It is an arithmetic number, because the mean of its divisors is an integer number (113778).

2^1213408 is an apocalyptic number.

It is an amenable number.

1213408 is an abundant number, since it is smaller than the sum of its proper divisors (1517264).

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

1213408 is an equidigital number, since it uses as much as digits as its factorization.

1213408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5434 (or 5426 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1213408 is about 1101.5480016776. The cubic root of 1213408 is about 106.6601732158.

Adding to 1213408 its reverse (8043121), we get a palindrome (9256529).

The spelling of 1213408 in words is "one million, two hundred thirteen thousand, four hundred eight".