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2442020 = 225717443
BaseRepresentation
bin1001010100001100100100
311121001211012
421110030210
51111121040
6124201352
726520410
oct11241444
94531735
102442020
1114187a9
12999258
136766a9
14477d40
15333865
hex254324

2442020 has 24 divisors (see below), whose sum is σ = 5861184. Its totient is φ = 837216.

The previous prime is 2442019. The next prime is 2442047. The reversal of 2442020 is 202442.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 2441986 and 2442004.

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, 8582 + ... + 8861.

It is an arithmetic number, because the mean of its divisors is an integer number (244216).

22442020 is an apocalyptic number.

2442020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2442020 is an abundant number, since it is smaller than the sum of its proper divisors (3419164).

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

2442020 is a wasteful number, since it uses less digits than its factorization.

2442020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17459 (or 17457 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 2442020 is about 1562.6963876582. The cubic root of 2442020 is about 134.6634506742.

Adding to 2442020 its reverse (202442), we get a palindrome (2644462).

The spelling of 2442020 in words is "two million, four hundred forty-two thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 17443 34886 69772 87215 122101 174430 244202 348860 488404 610505 1221010 2442020