45442221402 has 32 divisors (see below), whose sum is σ = 93353863104. Its totient is φ = 14735952000.

The previous prime is 45442221401. The next prime is 45442221403. The reversal of 45442221402 is 20412224454.

It is an interprime number because it is at equal distance from previous prime (45442221401) and next prime (45442221403).

It is a self number, because there is not a number n which added to its sum of digits gives 45442221402.

It is not an unprimeable number, because it can be changed into a prime (45442221401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2942902 + ... + 2958302.

It is an arithmetic number, because the mean of its divisors is an integer number (2917308222).

Almost surely, 2^45442221402 is an apocalyptic number.

45442221402 is an abundant number, since it is smaller than the sum of its proper divisors (47911641702).

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

45442221402 is a wasteful number, since it uses less digits than its factorization.

45442221402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28734.

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

Adding to 45442221402 its reverse (20412224454), we get a palindrome (65854445856).

The spelling of 45442221402 in words is "forty-five billion, four hundred forty-two million, two hundred twenty-one thousand, four hundred two".