40423211090 has 16 divisors (see below), whose sum is σ = 73024462872. Its totient is φ = 16110910464.

The previous prime is 40423211009. The next prime is 40423211093. The reversal of 40423211090 is 9011232404.

It can be written as a sum of positive squares in 4 ways, for example, as 29125859569 + 11297351521 = 170663^2 + 106289^2 .

It is not an unprimeable number, because it can be changed into a prime (40423211093) 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, 7293839 + ... + 7299378.

Almost surely, 2^40423211090 is an apocalyptic number.

40423211090 is a deficient number, since it is larger than the sum of its proper divisors (32601251782).

40423211090 is a wasteful number, since it uses less digits than its factorization.

40423211090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14593501.

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 40423211090 its reverse (9011232404), we get a palindrome (49434443494).

The spelling of 40423211090 in words is "forty billion, four hundred twenty-three million, two hundred eleven thousand, ninety".