40371428225 has 6 divisors (see below), whose sum is σ = 50060571030. Its totient is φ = 32297142560.

The previous prime is 40371428183. The next prime is 40371428239. The reversal of 40371428225 is 52282417304.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 142301041 + 40229127184 = 11929^2 + 200572^2 .

It is not a de Polignac number, because 40371428225 - 2⁶ = 40371428161 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 807428540 + ... + 807428589.

It is an arithmetic number, because the mean of its divisors is an integer number (8343428505).

Almost surely, 2^40371428225 is an apocalyptic number.

It is an amenable number.

40371428225 is a deficient number, since it is larger than the sum of its proper divisors (9689142805).

40371428225 is a wasteful number, since it uses less digits than its factorization.

40371428225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1614857139 (or 1614857134 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 38.

The spelling of 40371428225 in words is "forty billion, three hundred seventy-one million, four hundred twenty-eight thousand, two hundred twenty-five".