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40257260 = 2257572659
BaseRepresentation
bin1001100110010…
…0011011101100
32210202021120122
42121210123230
540301213020
63554504112
7666116051
oct231443354
983667518
1040257260
11207a696a
1211595038
138456984
1454bd028
153803125
hex26646ec

40257260 has 24 divisors (see below), whose sum is σ = 84683760. Its totient is φ = 16075584.

The previous prime is 40257247. The next prime is 40257271. The reversal of 40257260 is 6275204.

40257260 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13811 + ... + 16469.

It is an arithmetic number, because the mean of its divisors is an integer number (3528490).

Almost surely, 240257260 is an apocalyptic number.

It is an amenable number.

40257260 is an abundant number, since it is smaller than the sum of its proper divisors (44426500).

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

40257260 is a wasteful number, since it uses less digits than its factorization.

40257260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3425 (or 3423 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 40257260 is about 6344.8609125811. The cubic root of 40257260 is about 342.7268037971.

The spelling of 40257260 in words is "forty million, two hundred fifty-seven thousand, two hundred sixty".

Divisors: 1 2 4 5 10 20 757 1514 2659 3028 3785 5318 7570 10636 13295 15140 26590 53180 2012863 4025726 8051452 10064315 20128630 40257260