40428465308 has 72 divisors (see below), whose sum is σ = 89021356032. Its totient is φ = 15725556000.

The previous prime is 40428465307. The next prime is 40428465313. The reversal of 40428465308 is 80356482404.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40428465307) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 2128373 + ... + 2147283.

Almost surely, 2^40428465308 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40428465308, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44510678016).

40428465308 is an abundant number, since it is smaller than the sum of its proper divisors (48592890724).

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

40428465308 is a wasteful number, since it uses less digits than its factorization.

40428465308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19575 (or 19562 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 44.

The spelling of 40428465308 in words is "forty billion, four hundred twenty-eight million, four hundred sixty-five thousand, three hundred eight".