40206722 has 4 divisors (see below), whose sum is σ = 60310086. Its totient is φ = 20103360.

The previous prime is 40206709. The next prime is 40206811. The reversal of 40206722 is 22760204.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 38950081 + 1256641 = 6241^2 + 1121^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10051679 + ... + 10051682.

Almost surely, 2^40206722 is an apocalyptic number.

40206722 is a deficient number, since it is larger than the sum of its proper divisors (20103364).

40206722 is a wasteful number, since it uses less digits than its factorization.

40206722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20103363.

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 40206722 is about 6340.8770686712. The cubic root of 40206722 is about 342.5833267342.

Adding to 40206722 its reverse (22760204), we get a palindrome (62966926).

The spelling of 40206722 in words is "forty million, two hundred six thousand, seven hundred twenty-two".