45551442 has 8 divisors (see below), whose sum is σ = 91102896. Its totient is φ = 15183812.

The previous prime is 45551423. The next prime is 45551447. The reversal of 45551442 is 24415554.

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

45551442 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (45551447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3795948 + ... + 3795959.

It is an arithmetic number, because the mean of its divisors is an integer number (11387862).

Almost surely, 2^45551442 is an apocalyptic number.

45551442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

45551442 is a wasteful number, since it uses less digits than its factorization.

45551442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7591912.

The product of its digits is 16000, while the sum is 30.

The square root of 45551442 is about 6749.1808391834. The cubic root of 45551442 is about 357.1363397363.

Adding to 45551442 its reverse (24415554), we get a palindrome (69966996).

The spelling of 45551442 in words is "forty-five million, five hundred fifty-one thousand, four hundred forty-two".