40890739534 has 32 divisors (see below), whose sum is σ = 66875074560. Its totient is φ = 18680349600.

The previous prime is 40890739433. The next prime is 40890739537. The reversal of 40890739534 is 43593709804.

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40890739537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 285919 + ... + 404389.

It is an arithmetic number, because the mean of its divisors is an integer number (2089846080).

Almost surely, 2^40890739534 is an apocalyptic number.

40890739534 is a deficient number, since it is larger than the sum of its proper divisors (25984335026).

40890739534 is a wasteful number, since it uses less digits than its factorization.

40890739534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118816.

The product of its (nonzero) digits is 3265920, while the sum is 52.

The spelling of 40890739534 in words is "forty billion, eight hundred ninety million, seven hundred thirty-nine thousand, five hundred thirty-four".