45949390442 has 8 divisors (see below), whose sum is σ = 68925727332. Its totient is φ = 22974148000.

The previous prime is 45949390441. The next prime is 45949390451. The reversal of 45949390442 is 24409394954.

It can be written as a sum of positive squares in 2 ways, for example, as 30421987561 + 15527402881 = 174419^2 + 124609^2 .

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

It is a super-2 number, since 2×45949390442² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (45949390441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159059 + ... + 342342.

Almost surely, 2^45949390442 is an apocalyptic number.

45949390442 is a deficient number, since it is larger than the sum of its proper divisors (22976336890).

45949390442 is a wasteful number, since it uses less digits than its factorization.

45949390442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547224.

The product of its (nonzero) digits is 5598720, while the sum is 53.

The spelling of 45949390442 in words is "forty-five billion, nine hundred forty-nine million, three hundred ninety thousand, four hundred forty-two".