40440134 has 32 divisors (see below), whose sum is σ = 71159040. Its totient is φ = 16879392.

The previous prime is 40440131. The next prime is 40440157. The reversal of 40440134 is 43104404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40440131) 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, 142757 + ... + 143039.

It is an arithmetic number, because the mean of its divisors is an integer number (2223720).

Almost surely, 2^40440134 is an apocalyptic number.

40440134 is a deficient number, since it is larger than the sum of its proper divisors (30718906).

40440134 is a wasteful number, since it uses less digits than its factorization.

40440134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 40440134 is about 6359.2557740666. The cubic root of 40440134 is about 343.2449807741.

Adding to 40440134 its reverse (43104404), we get a palindrome (83544538).

The spelling of 40440134 in words is "forty million, four hundred forty thousand, one hundred thirty-four".