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4344140 = 225217207
BaseRepresentation
bin10000100100100101001100
322011201001002
4100210211030
52103003030
6233035432
751632063
oct20444514
98151032
104344140
1124a78a9
121555b78
13b913c8
148111da
155ac245
hex42494c

4344140 has 12 divisors (see below), whose sum is σ = 9122736. Its totient is φ = 1737648.

The previous prime is 4344139. The next prime is 4344143. The reversal of 4344140 is 414434.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 217207 = 4344140 / (4 + 3 + 4 + 4 + 1 + 4 + 0).

It is not an unprimeable number, because it can be changed into a prime (4344143) 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, 108584 + ... + 108623.

It is an arithmetic number, because the mean of its divisors is an integer number (760228).

Almost surely, 24344140 is an apocalyptic number.

It is an amenable number.

4344140 is an abundant number, since it is smaller than the sum of its proper divisors (4778596).

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

4344140 is a wasteful number, since it uses less digits than its factorization.

4344140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217216 (or 217214 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 4344140 is about 2084.2600605491. The cubic root of 4344140 is about 163.1678549883.

Adding to 4344140 its reverse (414434), we get a palindrome (4758574).

The spelling of 4344140 in words is "four million, three hundred forty-four thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 217207 434414 868828 1086035 2172070 4344140