4145442 has 32 divisors (see below), whose sum is σ = 9590400. Its totient is φ = 1170048.

The previous prime is 4145423. The next prime is 4145459. The reversal of 4145442 is 2445414.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3184 + ... + 4292.

It is an arithmetic number, because the mean of its divisors is an integer number (299700).

Almost surely, 2^4145442 is an apocalyptic number.

4145442 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 4145442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4795200).

4145442 is an abundant number, since it is smaller than the sum of its proper divisors (5444958).

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

4145442 is a wasteful number, since it uses less digits than its factorization.

4145442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1210.

The product of its digits is 2560, while the sum is 24.

The square root of 4145442 is about 2036.0358543012. The cubic root of 4145442 is about 160.6412029762.

The spelling of 4145442 in words is "four million, one hundred forty-five thousand, four hundred forty-two".