1642144 has 24 divisors (see below), whose sum is σ = 3695328. Its totient is φ = 703680.

The previous prime is 1642141. The next prime is 1642153. The reversal of 1642144 is 4412461.

It is not an unprimeable number, because it can be changed into a prime (1642141) 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, 3442 + ... + 3889.

It is an arithmetic number, because the mean of its divisors is an integer number (153972).

2^1642144 is an apocalyptic number.

1642144 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1642144 is an abundant number, since it is smaller than the sum of its proper divisors (2053184).

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

1642144 is an equidigital number, since it uses as much as digits as its factorization.

1642144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7348 (or 7340 counting only the distinct ones).

The product of its digits is 768, while the sum is 22.

The square root of 1642144 is about 1281.4616654430. The cubic root of 1642144 is about 117.9787379100.

The spelling of 1642144 in words is "one million, six hundred forty-two thousand, one hundred forty-four".