40490749206 has 72 divisors (see below), whose sum is σ = 91093827240. Its totient is φ = 13331796912.

The previous prime is 40490749183. The next prime is 40490749213. The reversal of 40490749206 is 60294709404.

40490749206 is a `hidden beast` number, since 4 + 0 + 490 + 74 + 92 + 0 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 205536700 + ... + 205536896.

It is an arithmetic number, because the mean of its divisors is an integer number (1265192045).

Almost surely, 2^40490749206 is an apocalyptic number.

40490749206 is an abundant number, since it is smaller than the sum of its proper divisors (50603078034).

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

40490749206 is an equidigital number, since it uses as much as digits as its factorization.

40490749206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 683 (or 341 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The spelling of 40490749206 in words is "forty billion, four hundred ninety million, seven hundred forty-nine thousand, two hundred six".