1242408 has 16 divisors (see below), whose sum is σ = 3106080. Its totient is φ = 414128.

The previous prime is 1242407. The next prime is 1242413. The reversal of 1242408 is 8042421.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (1242403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25860 + ... + 25907.

It is an arithmetic number, because the mean of its divisors is an integer number (194130).

2^1242408 is an apocalyptic number.

It is an amenable number.

1242408 is an abundant number, since it is smaller than the sum of its proper divisors (1863672).

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

1242408 is a wasteful number, since it uses less digits than its factorization.

1242408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51776 (or 51772 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 1242408 is about 1114.6335720765. The cubic root of 1242408 is about 107.5032052406.

Adding to 1242408 its reverse (8042421), we get a palindrome (9284829).

The spelling of 1242408 in words is "one million, two hundred forty-two thousand, four hundred eight".