40251224442 has 32 divisors (see below), whose sum is σ = 94576305600. Its totient is φ = 11259083520.

The previous prime is 40251224399. The next prime is 40251224471. The reversal of 40251224442 is 24442215204.

It is a super-2 number, since 2×40251224442² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23455567 + ... + 23457282.

It is an arithmetic number, because the mean of its divisors is an integer number (2955509550).

Almost surely, 2^40251224442 is an apocalyptic number.

40251224442 is an abundant number, since it is smaller than the sum of its proper divisors (54325081158).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40251224442 is a wasteful number, since it uses less digits than its factorization.

40251224442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46912878.

The product of its (nonzero) digits is 20480, while the sum is 30.

Adding to 40251224442 its reverse (24442215204), we get a palindrome (64693439646).

The spelling of 40251224442 in words is "forty billion, two hundred fifty-one million, two hundred twenty-four thousand, four hundred forty-two".