40242122 has 4 divisors (see below), whose sum is σ = 60363186. Its totient is φ = 20121060.

The previous prime is 40242119. The next prime is 40242173. The reversal of 40242122 is 22124204.

It is a happy number.

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., 36711481 + 3530641 = 6059^2 + 1879^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 40242122.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10060529 + ... + 10060532.

Almost surely, 2^40242122 is an apocalyptic number.

40242122 is a deficient number, since it is larger than the sum of its proper divisors (20121064).

40242122 is a wasteful number, since it uses less digits than its factorization.

40242122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20121063.

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 40242122 is about 6343.6678664634. The cubic root of 40242122 is about 342.6838397139.

Adding to 40242122 its reverse (22124204), we get a palindrome (62366326).

It can be divided in two parts, 402 and 42122, that added together give a palindrome (42524).

The spelling of 40242122 in words is "forty million, two hundred forty-two thousand, one hundred twenty-two".