2147442 has 16 divisors (see below), whose sum is σ = 4685472. Its totient is φ = 650720.

The previous prime is 2147429. The next prime is 2147461. The reversal of 2147442 is 2447412.

It is a super-2 number, since 2×2147442² = 9223014286728, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2¹⁵ + 1 + 4³ + 7² + 4⁵ + 4⁷ + 2²¹ .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16203 + ... + 16334.

It is an arithmetic number, because the mean of its divisors is an integer number (292842).

2^2147442 is an apocalyptic number.

2147442 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2147442 is an abundant number, since it is smaller than the sum of its proper divisors (2538030).

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

2147442 is a wasteful number, since it uses less digits than its factorization.

2147442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32553.

The product of its digits is 1792, while the sum is 24.

The square root of 2147442 is about 1465.4152994970. The cubic root of 2147442 is about 129.0150814649.

The spelling of 2147442 in words is "two million, one hundred forty-seven thousand, four hundred forty-two".