40446646242 has 16 divisors (see below), whose sum is σ = 81389572320. Its totient is φ = 13399502112.

The previous prime is 40446646199. The next prime is 40446646249. The reversal of 40446646242 is 24264664404.

It is a junction number, because it is equal to n+sod(n) for n = 40446646194 and 40446646203.

It is not an unprimeable number, because it can be changed into a prime (40446646249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20677267 + ... + 20679222.

It is an arithmetic number, because the mean of its divisors is an integer number (5086848270).

Almost surely, 2^40446646242 is an apocalyptic number.

40446646242 is an abundant number, since it is smaller than the sum of its proper divisors (40942926078).

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

40446646242 is a wasteful number, since it uses less digits than its factorization.

40446646242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41356657.

The product of its (nonzero) digits is 884736, while the sum is 42.

The spelling of 40446646242 in words is "forty billion, four hundred forty-six million, six hundred forty-six thousand, two hundred forty-two".