40406646444262 has 12 divisors (see below), whose sum is σ = 70505474918220. Its totient is φ = 17317134190356.

The previous prime is 40406646444259. The next prime is 40406646444293. The reversal of 40406646444262 is 26244464660404.

It is a congruent 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, 206156359312 + ... + 206156359507.

It is an arithmetic number, because the mean of its divisors is an integer number (5875456243185).

Almost surely, 2^{40406646444262} is an apocalyptic number.

40406646444262 is a deficient number, since it is larger than the sum of its proper divisors (30098828473958).

40406646444262 is a wasteful number, since it uses less digits than its factorization.

40406646444262 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412312718835 (or 412312718828 counting only the distinct ones).

The product of its (nonzero) digits is 21233664, while the sum is 52.

The spelling of 40406646444262 in words is "forty trillion, four hundred six billion, six hundred forty-six million, four hundred forty-four thousand, two hundred sixty-two".