40434633654 has 16 divisors (see below), whose sum is σ = 85626283248. Its totient is φ = 12685375232.

The previous prime is 40434633623. The next prime is 40434633661. The reversal of 40434633654 is 45633643404.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 198208887 + ... + 198209090.

It is an arithmetic number, because the mean of its divisors is an integer number (5351642703).

Almost surely, 2^40434633654 is an apocalyptic number.

40434633654 is an abundant number, since it is smaller than the sum of its proper divisors (45191649594).

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

40434633654 is a wasteful number, since it uses less digits than its factorization.

40434633654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396417999.

The product of its (nonzero) digits is 1244160, while the sum is 42.

The spelling of 40434633654 in words is "forty billion, four hundred thirty-four million, six hundred thirty-three thousand, six hundred fifty-four".