40406280225 has 24 divisors (see below), whose sum is σ = 66815729472. Its totient is φ = 21546571200.

The previous prime is 40406280223. The next prime is 40406280227. The reversal of 40406280225 is 52208260404.

It is an interprime number because it is at equal distance from previous prime (40406280223) and next prime (40406280227).

It is not a de Polignac number, because 40406280225 - 2¹ = 40406280223 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40406280223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 469659 + ... + 548991.

It is an arithmetic number, because the mean of its divisors is an integer number (2783988728).

Almost surely, 2^40406280225 is an apocalyptic number.

It is an amenable number.

40406280225 is a deficient number, since it is larger than the sum of its proper divisors (26409449247).

40406280225 is a wasteful number, since it uses less digits than its factorization.

40406280225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86137 (or 86132 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 33.

The spelling of 40406280225 in words is "forty billion, four hundred six million, two hundred eighty thousand, two hundred twenty-five".