40143422 has 8 divisors (see below), whose sum is σ = 65689272. Its totient is φ = 18247000.

The previous prime is 40143403. The next prime is 40143437. The reversal of 40143422 is 22434104.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×40143422² = 3222988659740168, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40143394 and 40143403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 912329 + ... + 912372.

It is an arithmetic number, because the mean of its divisors is an integer number (8211159).

Almost surely, 2^40143422 is an apocalyptic number.

40143422 is a deficient number, since it is larger than the sum of its proper divisors (25545850).

40143422 is a wasteful number, since it uses less digits than its factorization.

40143422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1824714.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 40143422 is about 6335.8836794878. The cubic root of 40143422 is about 342.4034487290.

Adding to 40143422 its reverse (22434104), we get a palindrome (62577526).

The spelling of 40143422 in words is "forty million, one hundred forty-three thousand, four hundred twenty-two".