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22024430440 = 235550610761
BaseRepresentation
bin10100100000110000…
…100010001101101000
32002211220211222201221
4110200300202031220
5330101223233230
614041243551424
71406533366315
oct244060421550
962756758657
1022024430440
119382242631
124327b2b574
1320ccc26b7c
1410cd0ddd0c
1588d85727a
hex520c22368

22024430440 has 16 divisors (see below), whose sum is σ = 49554968580. Its totient is φ = 8809772160.

The previous prime is 22024430437. The next prime is 22024430453. The reversal of 22024430440 is 4403442022.

It can be written as a sum of positive squares in 2 ways, for example, as 21938941924 + 85488516 = 148118^2 + 9246^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 275305341 + ... + 275305420.

Almost surely, 222024430440 is an apocalyptic number.

22024430440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22024430440 is an abundant number, since it is smaller than the sum of its proper divisors (27530538140).

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

22024430440 is a wasteful number, since it uses less digits than its factorization.

22024430440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550610772 (or 550610768 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 25.

Adding to 22024430440 its reverse (4403442022), we get a palindrome (26427872462).

The spelling of 22024430440 in words is "twenty-two billion, twenty-four million, four hundred thirty thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 20 40 550610761 1101221522 2202443044 2753053805 4404886088 5506107610 11012215220 22024430440