40128044604 has 48 divisors (see below), whose sum is σ = 102558506400. Its totient is φ = 12155078656.

The previous prime is 40128044573. The next prime is 40128044609. The reversal of 40128044604 is 40644082104.

It is a super-2 number, since 2×40128044604² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40128044609) 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, 3385569 + ... + 3397400.

It is an arithmetic number, because the mean of its divisors is an integer number (2136635550).

Almost surely, 2^40128044604 is an apocalyptic number.

It is an amenable number.

40128044604 is an abundant number, since it is smaller than the sum of its proper divisors (62430461796).

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

40128044604 is a wasteful number, since it uses less digits than its factorization.

40128044604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6783022 (or 6783020 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 33.

The spelling of 40128044604 in words is "forty billion, one hundred twenty-eight million, forty-four thousand, six hundred four".