Search a number
-
+
40487804 = 2279831471
BaseRepresentation
bin1001101001110…
…0101101111100
32211011222211022
42122130231330
540331102204
64003443312
71001066150
oct232345574
984158738
1040487804
11209440a5
1211686538
1385078a6
14553d060
15384b5be
hex269cb7c

40487804 has 24 divisors (see below), whose sum is σ = 81113088. Its totient is φ = 17322480.

The previous prime is 40487801. The next prime is 40487819. The reversal of 40487804 is 40878404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40487801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26789 + ... + 28259.

It is an arithmetic number, because the mean of its divisors is an integer number (3379712).

Almost surely, 240487804 is an apocalyptic number.

It is an amenable number.

40487804 is an abundant number, since it is smaller than the sum of its proper divisors (40625284).

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

40487804 is a wasteful number, since it uses less digits than its factorization.

40487804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2465 (or 2463 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 35.

The square root of 40487804 is about 6363.0027502744. The cubic root of 40487804 is about 343.3797978610.

Subtracting from 40487804 its sum of digits (35), we obtain a square (40487769 = 63632).

The spelling of 40487804 in words is "forty million, four hundred eighty-seven thousand, eight hundred four".

Divisors: 1 2 4 7 14 28 983 1471 1966 2942 3932 5884 6881 10297 13762 20594 27524 41188 1445993 2891986 5783972 10121951 20243902 40487804