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3440380040 = 23586009501
BaseRepresentation
bin1100110100010000…
…0000100010001000
322212202200102011222
43031010000202020
524021214130130
61325215141212
7151153514336
oct31504004210
98782612158
103440380040
111506006499
12800214808
1342a9c3646
14248cbcb56
15152081ce5
hexcd100888

3440380040 has 16 divisors (see below), whose sum is σ = 7740855180. Its totient is φ = 1376152000.

The previous prime is 3440380039. The next prime is 3440380057. The reversal of 3440380040 is 400830443.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3378631876 + 61748164 = 58126^2 + 7858^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3440379991 and 3440380009.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43004711 + ... + 43004790.

Almost surely, 23440380040 is an apocalyptic number.

It is an amenable number.

3440380040 is an abundant number, since it is smaller than the sum of its proper divisors (4300475140).

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

3440380040 is a wasteful number, since it uses less digits than its factorization.

3440380040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86009512 (or 86009508 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 3440380040 is about 58654.7529190943. The cubic root of 3440380040 is about 1509.6240515468.

The spelling of 3440380040 in words is "three billion, four hundred forty million, three hundred eighty thousand, forty".

Divisors: 1 2 4 5 8 10 20 40 86009501 172019002 344038004 430047505 688076008 860095010 1720190020 3440380040