22970642 has 6 divisors (see below), whose sum is σ = 34466133. Its totient is φ = 11481932.
The previous prime is 22970627. The next prime is 22970663. The reversal of 22970642 is 24607922.
It can be written as a sum of positive squares in 2 ways, for example, as 15358561 + 7612081 = 3919^2 + 2759^2 .
It is an ABA number since it can be written as A⋅BA, here for A=2, B=3389.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 22970599 and 22970608.
It is an unprimeable number.
It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 5084 + ... + 8472.
Almost surely, 222970642 is an apocalyptic number.
22970642 is a deficient number, since it is larger than the sum of its proper divisors (11495491).
22970642 is an frugal number, since it uses more digits than its factorization.
22970642 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6780 (or 3391 counting only the distinct ones).
The product of its (nonzero) digits is 12096, while the sum is 32.
The square root of 22970642 is about 4792.7697628824. The cubic root of 22970642 is about 284.2656461079.
Multiplying 22970642 by its sum of digits (32), we get a square (735060544 = 271122).
The spelling of 22970642 in words is "twenty-two million, nine hundred seventy thousand, six hundred forty-two".
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