40123134 has 32 divisors (see below), whose sum is σ = 89460000. Its totient is φ = 13329792.

The previous prime is 40123121. The next prime is 40123141. The reversal of 40123134 is 43132104.

40123134 is a `hidden beast` number, since 401 + 231 + 34 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17782 + ... + 19910.

It is an arithmetic number, because the mean of its divisors is an integer number (2795625).

Almost surely, 2^40123134 is an apocalyptic number.

40123134 is an abundant number, since it is smaller than the sum of its proper divisors (49336866).

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

40123134 is a wasteful number, since it uses less digits than its factorization.

40123134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2489 (or 2483 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 40123134 is about 6334.2824376562. The cubic root of 40123134 is about 342.3457568216.

Adding to 40123134 its reverse (43132104), we get a palindrome (83255238).

The spelling of 40123134 in words is "forty million, one hundred twenty-three thousand, one hundred thirty-four".