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40227489 = 334334649
BaseRepresentation
bin1001100101110…
…1001010100001
32210200202202000
42121131022201
540244234424
63554114213
7665633211
oct231351241
983622660
1040227489
1120786565
121157b969
138446263
1454b2241
1537e93c9
hex265d2a1

40227489 has 16 divisors (see below), whose sum is σ = 60984000. Its totient is φ = 26193888.

The previous prime is 40227469. The next prime is 40227493. The reversal of 40227489 is 98472204.

It is not a de Polignac number, because 40227489 - 28 = 40227233 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (40227409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16164 + ... + 18485.

It is an arithmetic number, because the mean of its divisors is an integer number (3811500).

Almost surely, 240227489 is an apocalyptic number.

It is an amenable number.

40227489 is a deficient number, since it is larger than the sum of its proper divisors (20756511).

40227489 is a wasteful number, since it uses less digits than its factorization.

40227489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34701 (or 34695 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 40227489 is about 6342.5144067633. The cubic root of 40227489 is about 342.6422986595.

It can be divided in two parts, 4022 and 7489, that added together give a palindrome (11511).

The spelling of 40227489 in words is "forty million, two hundred twenty-seven thousand, four hundred eighty-nine".

Divisors: 1 3 9 27 43 129 387 1161 34649 103947 311841 935523 1489907 4469721 13409163 40227489