5657442 has 32 divisors (see below), whose sum is σ = 13200000. Its totient is φ = 1615824.

The previous prime is 5657441. The next prime is 5657461. The reversal of 5657442 is 2447565.

It is not an unprimeable number, because it can be changed into a prime (5657441) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 684 + ... + 3432.

It is an arithmetic number, because the mean of its divisors is an integer number (412500).

Almost surely, 2^5657442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5657442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6600000).

5657442 is an abundant number, since it is smaller than the sum of its proper divisors (7542558).

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

5657442 is a wasteful number, since it uses less digits than its factorization.

5657442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2775 (or 2761 counting only the distinct ones).

The product of its digits is 33600, while the sum is 33.

The square root of 5657442 is about 2378.5377861199. The cubic root of 5657442 is about 178.1859144080.

It can be divided in two parts, 56574 and 42, that added together give a triangular number (56616 = T₃₃₆).

The spelling of 5657442 in words is "five million, six hundred fifty-seven thousand, four hundred forty-two".