40001304228 has 12 divisors (see below), whose sum is σ = 93336376560. Its totient is φ = 13333768072.

The previous prime is 40001304169. The next prime is 40001304229. The reversal of 40001304228 is 82240310004.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 40001304198 and 40001304207.

It is not an unprimeable number, because it can be changed into a prime (40001304229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1666720998 + ... + 1666721021.

It is an arithmetic number, because the mean of its divisors is an integer number (7778031380).

Almost surely, 2^40001304228 is an apocalyptic number.

It is an amenable number.

40001304228 is an abundant number, since it is smaller than the sum of its proper divisors (53335072332).

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

40001304228 is a wasteful number, since it uses less digits than its factorization.

40001304228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3333442026 (or 3333442024 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The spelling of 40001304228 in words is "forty billion, one million, three hundred four thousand, two hundred twenty-eight".