90442955450 has 96 divisors (see below), whose sum is σ = 188583733440. Its totient is φ = 32069606400.

The previous prime is 90442955443. The next prime is 90442955459. The reversal of 90442955450 is 5455924409.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 90442955395 and 90442955404.

It is not an unprimeable number, because it can be changed into a prime (90442955459) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2777765 + ... + 2810135.

It is an arithmetic number, because the mean of its divisors is an integer number (1964413890).

Almost surely, 2^90442955450 is an apocalyptic number.

90442955450 is an abundant number, since it is smaller than the sum of its proper divisors (98140777990).

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

90442955450 is a wasteful number, since it uses less digits than its factorization.

90442955450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32592 (or 32587 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 47.

The spelling of 90442955450 in words is "ninety billion, four hundred forty-two million, nine hundred fifty-five thousand, four hundred fifty".