1552406 has 8 divisors (see below), whose sum is σ = 2465640. Its totient is φ = 730528.

The previous prime is 1552403. The next prime is 1552417. The reversal of 1552406 is 6042551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1552403) 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, 22796 + ... + 22863.

It is an arithmetic number, because the mean of its divisors is an integer number (308205).

2^1552406 is an apocalyptic number.

1552406 is a deficient number, since it is larger than the sum of its proper divisors (913234).

1552406 is a wasteful number, since it uses less digits than its factorization.

1552406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45678.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 1552406 is about 1245.9558579661. The cubic root of 1552406 is about 115.7893024283.

Adding to 1552406 its reverse (6042551), we get a palindrome (7594957).

The spelling of 1552406 in words is "one million, five hundred fifty-two thousand, four hundred six".