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40724934 = 236787489
BaseRepresentation
bin1001101101011…
…0100111000110
32211122001002220
42123112213012
540411144214
64012513210
71003104405
oct233264706
984561086
1040724934
1120a96278
121177b806
13858b7c3
1455a163c
1538969a9
hex26d69c6

40724934 has 8 divisors (see below), whose sum is σ = 81449880. Its totient is φ = 13574976.

The previous prime is 40724933. The next prime is 40724939. The reversal of 40724934 is 43942704.

It is a sphenic number, since it is the product of 3 distinct primes.

40724934 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 40724895 and 40724904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40724933) 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, 3393739 + ... + 3393750.

It is an arithmetic number, because the mean of its divisors is an integer number (10181235).

Almost surely, 240724934 is an apocalyptic number.

40724934 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

40724934 is a wasteful number, since it uses less digits than its factorization.

40724934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6787494.

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 40724934 is about 6381.6090447473. The cubic root of 40724934 is about 344.0488651965.

The spelling of 40724934 in words is "forty million, seven hundred twenty-four thousand, nine hundred thirty-four".

Divisors: 1 2 3 6 6787489 13574978 20362467 40724934